10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________

FORM 10-K

__________________________

(Mark One)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2012

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to            

Commission File Number: 001-35551

__________________________

FACEBOOK, INC.

(Exact name of registrant as specified in its charter)

__________________________

Delaware	20-1665019
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

1601 Willow Road, Menlo Park, California 94025

(Address of principal executive offices and Zip Code)

(650) 308-7300

(Registrant's telephone number, including area code)

__________________________

Securities registered pursuant to Section 12(b) of the Act:

Class A Common Stock, $0.000006 par value	The NASDAQ Stock Market LLC
(Title of each class)	(Name of each exchange on which registered)

Securities registered pursuant to Section 12(g) of the Act:

None

(Title of class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes  ¨  No   x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ¨ No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 (Exchange Act) during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	x (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No   x

The aggregate market value of the voting and non-voting stock held by non-affiliates of the registrant as of June 29, 2012, the last business day of the registrant's most recently completed second fiscal quarter, was $47,206,114,899 based upon the closing price reported for such date on the NASDAQ Global Select Market.

On January 29, 2013 the registrant had 1,684,185,170 shares of Class A common stock and 697,948,924 shares of Class B common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant's Proxy Statement for the 2013 Annual Meeting of Stockholders are incorporated herein by reference in Part III of this Annual Report on Form 10-K to the extent stated herein. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the registrant's fiscal year ended December 31, 2012.

FACEBOOK, INC.

FORM 10-K

TABLE OF CONTENTS

Note About Forward-Looking Statements		3
Limitations of Key Metrics		4
PART I
Item1.	Business	5
Item1A.	Risk Factors	13
Item 1B.	Unresolved Staff Comments	30
Item 2.	Properties	30
Item 3.	Legal Proceedings	30
Item 4.	Mine Safety Disclosures	31
PART II
Item 5.	Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	32
Item 6.	Selected Financial Data	34
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations	36
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	57
Item 8.	Financial Statements and Supplementary Data	58
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	87
Item 9A.	Controls and Procedures	87
Item 9B.	Other Information	87
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	88
Item 11.	Executive Compensation	88
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	88
Item 13.	Certain Relationships and Related Transactions, and Director Independence	88
Item 14.	Principal Accounting Fees and Services	88
PART IV
Item 15.	Exhibits, Financial Statement Schedules	89
Signatures

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NOTE ABOUT FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this Annual Report on Form 10-K other than statements of historical fact, including statements regarding our future results of operations and financial position, our business strategy and plans, and our objectives for future operations, are forward-looking statements. The words "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect," and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives, and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in Part I, Item 1A, "Risk Factors" in this Annual Report on Form 10-K. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the future events and trends discussed in this Annual Report on Form 10-K may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements.

We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as required by law. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements.

Unless expressly indicated or the context requires otherwise, the terms "Facebook," "company," "we," "us," and "our" in this document refer to Facebook, Inc., a Delaware corporation, and, where appropriate, its wholly owned subsidiaries. The term "Facebook" may also refer to our products, regardless of the manner in which they are accessed.

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LIMITATIONS OF KEY METRICS

The numbers of our monthly active users (MAUs), daily active users (DAUs), mobile MAUs, and average revenue per user (ARPU) are calculated using internal company data based on the activity of user accounts. While these numbers are based on what we believe to be reasonable estimates of our user base for the applicable period of measurement, there are inherent challenges in measuring usage of our products across large online and mobile populations around the world. For example, there may be individuals who maintain one or more Facebook accounts in violation of our terms of service. We estimate, for example, that "duplicate" accounts (an account that a user maintains in addition to his or her principal account) may have represented approximately 5.0% of our worldwide MAUs as of December 31, 2012. We also seek to identify "false" accounts, which we divide into two categories: (1) user-misclassified accounts, where users have created personal profiles for a business, organization, or non-human entity such as a pet (such entities are permitted on Facebook using a Page rather than a personal profile under our terms of service); and (2) undesirable accounts, which represent user profiles that we determine are intended to be used for purposes that violate our terms of service, such as spamming. As of December 31, 2012, for example, we estimate user-misclassified accounts may have represented approximately 1.3% of our worldwide MAUs and undesirable accounts may have represented approximately 0.9% of our worldwide MAUs. We believe the percentage of accounts that are duplicate or false is meaningfully lower in developed markets such as the United States or Australia and higher in developing markets such as Indonesia and Turkey. However, these estimates are based on an internal review of a limited sample of accounts and we apply significant judgment in making this determination, such as identifying names that appear to be fake or other behavior that appears inauthentic to the reviewers. As such, our estimation of duplicate or false accounts may not accurately represent the actual number of such accounts. We are continually seeking to improve our ability to identify duplicate or false accounts and estimate the total number of such accounts, and such estimates may change due to improvements or changes in our methodology.

Some of our historical metrics through the second quarter of 2012 have also been affected by applications on certain mobile devices that automatically contact our servers for regular updates with no user action involved, and this activity can cause our system to count the user associated with such a device as an active user on the day such contact occurs. For example, we estimate that less than 5% of our estimated worldwide DAUs as of December 31, 2011 and 2010 resulted from this type of automatic mobile activity, and that this type of activity had a substantially smaller effect on our estimate of worldwide MAUs and mobile MAUs. The impact of this automatic activity on our metrics varies by geography because mobile usage varies in different regions of the world. In addition, our data regarding the geographic location of our users is estimated based on a number of factors, such as the user's IP address and self-disclosed location. These factors may not always accurately reflect the user's actual location. For example, a mobile-only user may appear to be accessing Facebook from the location of the proxy server that the user connects to rather than from the user's actual location. The methodologies used to measure user metrics may also be susceptible to algorithm or other technical errors. For example, in early June 2012, we discovered an error in the algorithm we used to estimate the geographic location of our users that affected our attribution of certain user locations for the period ended March 31, 2012. While this issue did not affect our overall worldwide MAU number, it did affect our attribution of users to different geographic regions. We estimate that the number of MAUs as of March 31, 2012 for the United States & Canada region was overstated as a result of the error by approximately 3% and these overstatements were offset by understatements in other regions. Our estimates for revenue by user location and revenue by user device are also affected by these factors. We regularly review and may adjust our processes for calculating these metrics to improve their accuracy. In addition, our MAU and DAU estimates will differ from estimates published by third parties due to differences in methodology. For example, some third parties are not able to accurately measure mobile users or do not count mobile users for certain user groups or at all in their analyses.

The numbers of MAUs, DAUs, and mobile MAUs discussed in this Annual Report on Form 10-K, as well as ARPU, do not include users of Instagram unless such users would otherwise qualify as MAUs, DAUs, and mobile MAUs, respectively, based on activity that is shared back to Facebook. In addition, our other user engagement metrics, such as friend connections, do not include Instagram unless otherwise specifically stated.

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PART I

Item 1. Business

Overview

Our mission is to make the world more open and connected.

Millions of people come to Facebook every day to stay connected with their friends and family, to discover what is going on in the world around them, and to share and express what matters to them to the people they care about.

Developers can use the Facebook Platform to build applications (apps) and websites that integrate with Facebook to reach our global network of users and to build products that are more personalized and social.

Marketers can engage with more than one billion monthly active users on Facebook or subsets of our users based on information people have chosen to share with us such as their age, location, gender, or interests. We offer marketers a unique combination of reach, relevance, social context, and engagement to enhance the value of their ads.

We believe that we are at the forefront of enabling faster, easier, and richer communication between people and that Facebook has become an integral part of many of our users' daily lives.

2012 Highlights

• We had 1.06 billion monthly active users (MAUs) as of December 31, 2012, an increase of 25% as compared to 845 million MAUs as of December 31, 2011.

• We had 618 million daily active users (DAUs) on average in December 2012, an increase of 28% as compared to 483 million DAUs in December 2011.

• We had 680 million MAUs who used Facebook mobile products in December 2012, an increase of 57% as compared to 432 million MAUs who used Facebook mobile products in December 2011.

• There were more than 150 billion friend connections on Facebook as of December 31, 2012.

• On average more than 350 million photos per day were uploaded to Facebook in the fourth quarter of 2012. Over 240 billion photos have been shared on Facebook.

• As of December 31, 2012, there were more than 50 million Pages with ten or more Likes.

• In August 2012, we acquired Instagram, a photo-sharing service with over 100 million registered users.

• In 2012, we released a number of new Facebook apps for iPhone, iPad, and Android devices. These releases were built to improve the speed and quality of our mobile product offerings.

• In 2012, we introduced features that give marketers new ways to reach people who use Facebook. These include ads in News Feed on both desktop and mobile devices and Custom Audiences, a feature that allows marketers to find their offline customers among Facebook users, and Facebook Exchange (FBX), a real-time bidded ad exchange.

How We Create Value for Users

Our top priority is to build useful and engaging products that enable you to:

• Connect and Share with Your Friends. With more than one billion MAUs worldwide, Facebook users are increasingly able to find and stay connected with their friends, family, and colleagues on Facebook.

• Discover and Learn. We believe that people come to Facebook to discover and learn more about what is going on in the world around them, particularly in the lives of their friends and family and with public figures and organizations that interest them. Each person's experience on Facebook is unique based on the content shared by his or her friends and connections. This content is personalized for each user in our products such as News Feed and Timeline.

• Express Yourself. We enable people to share and publish their opinions, ideas, photos, and activities to audiences ranging from their closest friends to our one billion users, giving everyone a voice within the Facebook community. Through Facebook's privacy and sharing settings, people can control what they share and with whom they share it.

• Stay Connected Everywhere. People can access Facebook through our website, mobile sites, smartphone apps, and feature phone products. Through apps and websites built by developers using the Facebook Platform, people can interact with

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their Facebook friends while playing games, listening to music, watching movies, reading news, and engaging in other activities across the web and on mobile devices.

Our product development approach is centered on building the most useful tools that enable people to connect, share, discover, and communicate with each other on mobile devices and computers.

• Timeline. Timeline allows people to organize and display the events and activities that matter most to them, enabling them to curate their memories in a searchable personal narrative that is organized chronologically. People choose what information to share on their Timeline, such as their interests, photos, education, work history, relationship status, and contact information, and people can control with whom each piece of content is shared on their Timeline.

• News Feed. The Facebook News Feed is the core feature of a person's homepage and is a regularly updating list of stories from friends, Pages, and other entities to which the person is connected on Facebook. It includes posts, photos, event updates, group memberships, app updates, and other activities. Each person's News Feed is personalized based on his or her interests and the sharing activity of his or her friends. Stories in a user's News Feed are prioritized based on several factors, including how many friends have Liked or Commented on a certain piece of content, who posted the content, and what type of content it is.

• Photos and Videos. Facebook is the most popular photo uploading service on the web. People can upload an unlimited number of high resolution photos, create photo albums, and share them with their friends or any audience they choose. Users can also upload and share videos. People can set specific privacy settings for each of their photo albums and videos, making them visible to everyone, or only to certain friends. In addition, in 2012, we acquired Instagram, a mobile phone-based photo-sharing service, to enhance our photos product offerings and to enable users to increase their levels of mobile engagement and photo sharing.

• Messages. Our messaging products include email, chat, and text messaging. The delivery of messages is optimized for the device through which the person is accessing Facebook. We aim to be the fastest and most reliable way for users to communicate through:

- Email. Users can set up a free @facebook.com address.

- Chat. Users can send messages to their friends in an instant message format.

- Text Messaging. Users can activate text messaging on Facebook, allowing the texts they exchange with friends to be incorporated into their respective conversations along with their message and chat history.

How We Create Value for Developers Through the Facebook Platform

The Facebook Platform is a set of development tools and application programming interfaces (APIs) that enables developers to easily integrate with Facebook to create social apps and websites and to reach our more than one billion users. More than 10 million apps and websites were integrated with Facebook as of December 31, 2012. We are focused on providing Platform developers with unique opportunities to increase their growth, engagement, and monetization, while offering users new ways to connect with their friends through things like games, music, fitness and video apps.

Facebook offers tools and APIs that enable developers to increase growth, engagement and monetization.

• Growth. We enable Platform developers to reach our global user base and use our distribution channels like News Feed and App Center to increase traffic to their apps and websites.

• Engagement. We enable Platform developers to create better products that are personalized and social and that offer new ways for our users to engage with friends and share experiences across mobile devices and on the web.

• Monetization. We provide an online payments infrastructure that enables Platform developers to receive payments from our users in an easy-to-use, secure, and trusted environment. In 2012, our Platform developers received more than $1.96 billion from transactions enabled by our Payments infrastructure.

Key elements of the Facebook Platform include:

• Open Graph. Our underlying Platform is a set of APIs that developers can use to build apps and websites that enable users to share their activities with friends on Facebook. As Open Graph connected apps and websites become an important part of how users express themselves, activities such as the books people are reading, the movies people want to watch and the songs they are listening to are more prominently displayed throughout Facebook's Timeline and News Feed. This enables developer apps and websites to become a key part of the Facebook experience for users and can increase growth

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and engagement for developers.

• Social Plugins. Social plugins, such as the Like button, are social features that developers can easily integrate with their websites by incorporating a few lines of HTML code. Social Plugins enable developers to provide engaging and personalized social experiences to their users.

• Payments.Facebook provides an online payments infrastructure that enables developers to receive payments from users through an efficient and secure system. Our Payments infrastructure enables users on personal computers to purchase virtual or digital goods from developers and third-party websites by using debit and credit cards, PayPal, mobile phone payments, gift cards or other methods. Currently, substantially all of our Payments revenue is from users' purchases of virtual goods used in social games. We receive a fee of up to 30% when users make such purchases from our Platform developers using our Payments infrastructure. Mobile applications integrated with our Platform do not utilize our Payments infrastructure.

How We Create Value for Marketers

We focus on providing value for all kinds of marketers, including brand marketers, direct marketers, small and medium-sized businesses, and developers by offering a unique combination of reach, relevance, social context, and engagement:

• Reach. With over one billion MAUs, Facebook offers marketers the ability to reach a vast consumer audience.

• Relevance. Marketers can target users on Facebook based on demographic factors such as age, location, gender, education, work history, and specific interests that users have chosen to share with us on Facebook. In addition, marketers may choose to match their own data or third-party data with ours, so they can find their customers - or those who look like them - directly on Facebook. We believe that users have a better experience when ads are effectively tailored and, therefore, more relevant to them.

• Social Context. We believe that the recommendations of friends have a powerful influence on consumer interest and purchase decisions. We offer marketers the ability to include "social context" with their marketing messages. Social context is information that highlights a friend's connections with a particular brand or business.

• Engagement. We believe that the shift to a more social web creates new opportunities for businesses to engage with interested customers. Many of our ad products offer new and innovative ways for our marketers to interact with our users, such as ads that encourage comments, include polls, invite people to an event or help users discover and install mobile applications.

Any brand or business can have a presence on Facebook by creating a Facebook Page. Through Pages, we give brands the opportunity to form direct and ongoing relationships with their existing and prospective customers, with the potential to turn them into valuable advocates. When a Facebook user "Likes" a Page, the Page owner has the opportunity to publish stories to the person's News Feed on an ongoing basis. We believe that this ongoing connection provides businesses with a significant advantage as compared to advertising on traditional websites. In addition, businesses can use Pages to drive awareness, traffic to their e-commerce websites or physical stores, sales, and ultimately customer loyalty. We do not charge businesses for their Pages, nor do we charge for the resulting organic distribution of their content. However, Page owners can use Facebook ads to reach a larger audience or utilize our Promoted Posts feature, which enables businesses to pay a fixed fee to boost the distribution of posts that they care about to people who have "Liked" the Page, to gain more prominent distribution.

Facebook offers products and tools that enable marketers to leverage our unique combination of reach, relevance, social context, and engagement.

• Facebook Ads. Our ads, including sponsored stories, offer businesses the opportunity to direct a user to specific content, a destination web page or a Facebook Page if the user clicks on the ad. Our ads provide our users with a consistent ad experience and enable marketers to deploy and adjust campaigns rapidly.

Currently, ads can appear in multiple locations including in the right-hand side of most page types on personal computers, and in the News Feed on personal computers and mobile devices. Ads with social context allow marketers to highlight the interactions of a user's friends with a brand or product, such as Liking or Commenting on the marketer's Facebook Page. Ads with social context respect users' privacy settings and may be shown only to the people users have already shared their activity with on Facebook.

• Facebook Ad System. When marketers create an ad campaign on Facebook, they specify the types of users they want to reach based on information that users chose to share. In addition, marketers can use other products such as FBX and

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Custom Audiences to more precisely target their desired audience. Marketers indicate the maximum price they are willing to pay for their ad, per click (CPC) or per thousand impressions (CPM), and their maximum budget. Our system also supports guaranteed delivery of a fixed number of ad impressions for a fixed price. Facebook's ad serving technology dynamically determines the best available ad to show each person based on the combination of the person's unique attributes and the real-time comparison of bids from eligible ads.

• Ad Analytics and Facebook Insights. Marketers can use our analytics platform to track and optimize the performance of their campaigns. Facebook Ad Analytics enable marketers to gain insights into which ads were displayed and clicked on. These analytics help marketers make modifications to their ad campaigns to maximize results.

For marketers with Facebook Pages, Facebook Insights provides timely information about the performance of their Page and related posts. The data include the number of users who Liked and Commented on the Page and a metric, "People Talking About This," which shows how many stories about the marketer's brand are being created and shared, among other aggregated and anonymized engagement data.

Our Strategy

We are in the early stages of pursuing our mission to make the world more open and connected. We believe we have a significant opportunity to further enhance the value we deliver to users, developers, and marketers. Key elements of our strategy are:

• Expand Our Global User Community. There are more than 1.5 billion internet users on personal computers, and more than three billion mobile users worldwide according to GSMA Wireless Intelligence, and we aspire to someday connect all of these people. As of December 31, 2012, we had 1.06 billion MAUs globally with approximately 84% accessing Facebook from outside the United States. We continue to focus on increasing the number of people using Facebook across all geographies, including relatively less-penetrated, large markets such as Brazil, India, Mexico and Japan. We intend to increase the size of our network by continuing our marketing and user acquisition efforts and enhancing our products, including mobile apps, in order to make Facebook more accessible, useful and engaging.

• Build Great Social Products to Increase Engagement and Provide the Most Compelling User Experience. We prioritize product development investments that we believe will create engaging interactions between our users, developers, and marketers. We continue to invest significantly in improving our core products such as News Feed, Timeline, and Photos, developing new products, and enabling new Platform apps and website integrations. To provide the most compelling user experience, we continue to develop products and technologies focused on optimizing our social distribution channels to deliver the most useful content to each user by analyzing and organizing vast amounts of information in real time.

• Make our Mobile Products Engaging and Easily Available. We are devoting substantial resources to developing mobile products and experiences for a wide range of platforms, including smartphones and feature phones. In addition, we are working across the mobile industry with operators, hardware manufacturers, operating system providers, and developers to improve the Facebook experience on mobile devices and make Facebook available to more people around the world. We had 680 million MAUs who used Facebook mobile products in December 2012. In August 2012, we acquired Instagram, Inc., which has built a mobile phone-based photo-sharing service that enables people to increase their levels of mobile engagement and sharing. We believe that mobile usage of Facebook is critical to user growth and engagement over the long term, and accordingly are prioritizing mobile product development.

• Enable Developers to Build Great Social Products Using the Facebook Platform. The success of Platform developers and the vibrancy of our Platform ecosystem are part of our strategy to increase user engagement. Social games have achieved significant levels of adoption by people using Facebook, and we are also focused on working with leading app developers in categories such as news, movies, books, fitness and music. Engagement with our Platform developers' apps and websites can create value for Facebook in multiple ways: our Platform supports our advertising business because apps on Facebook create engagement that enables us to show ads; our Platform developers may purchase advertising on Facebook to drive traffic to their apps and websites; Platform developers use our Payment infrastructure to facilitate transactions with users on personal computers; Platform apps share content with Facebook that makes our products more engaging; and engagement with Platform apps and websites contributes to our understanding of people's interests and preferences, improving our ability to personalize content. We continue to invest in tools and APIs that enhance the ability of Platform developers to deliver products that are more social and personalized and better engage people on Facebook, on mobile devices and across the web.

• Improve Ad Products for Marketers and Users. We are investing to improve our ad products in order to attract more marketers to work with Facebook, to create more value for our marketers, and to enhance their ability to make their advertising more relevant for users. Our advertising strategy centers on the belief that ad products that are social, relevant, and well-integrated with other content on Facebook can enhance the user experience while providing an attractive return

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for marketers. We intend to invest in additional products for our marketers, such as ads in News Feeds on personal computers and mobile devices, while continuing to balance our monetization objectives with our commitment to optimizing the user experience. We will continue to work to develop new tools such as Custom Audiences that help marketers to target their ads most effectively and thereby increases their return on ad spend. We also continue to focus on analytics and measurement tools to evaluate, demonstrate, and improve the effectiveness of ad campaigns on Facebook.

• Build a Scalable Infrastructure to Provide the Most Compelling, Robust, and Reliable Product Experience. We are investing in software and hardware infrastructure that enables us to provide a unique, personalized experience to each of our users around the world. We believe the speed and reliability of our products are important competitive advantages.

Building and Maintaining User Trust

Trust is a cornerstone of our business. We dedicate significant resources to the goal of building user trust through developing and implementing programs designed to protect user privacy, promote a safe environment, and assure the security of user data. The resources we dedicate to this goal include engineers, analysts, lawyers, policy experts, and operations specialists, as well as hardware and software from leading vendors and solutions we have designed and built.

• Privacy and Sharing. People come to Facebook to connect and share. Protecting user privacy is an important part of our product development process. Our objective is to give users choice over what they share and with whom they share it. This effort is fundamental to our business and focuses on control, transparency, and accountability.

- Control. We believe that by providing our users with clear and easy-to-use controls, we will continue to promote trust in our products. For example, when a user posts a status update or uploads a photo to Facebook, our in-line controls allow the user to select his or her audience at the same time that he or she is publishing the post. In addition, we provide other data management tools. "Activity Log" is a unified tool that people can use to review and manage the content they have posted and the actions they have taken on Facebook. When using the Activity Log, a user can view his or her activity with a particular app, delete a specific post, change who can see a photo, or remove an app completely. Additionally, our "Download Your Information" tool enables users to remove or store their personal information off of Facebook.

- Transparency. Our Data Use Policy describes in plain language our data use practices and how privacy works on Facebook. We also offer a number of tools and features that provide users with transparency about their information on Facebook. Our application settings feature enables users to view each of the apps they have chosen to use, the information needed by each app, and the audience with whom the user has chosen to share his or her interactions with each app. We believe that this transparency enables people to make more informed decisions about their activities on Facebook.

- Accountability. We continue to build new procedural safeguards as part of our comprehensive privacy program. These include a dedicated team of privacy professionals who are involved in new product and feature development from design through launch; ongoing review and monitoring of the way data is handled by existing features and apps; and rigorous data security practices. We regularly work with online privacy and safety experts and regulators around the world. In August 2012, the Federal Trade Commission formally approved a 20-year agreement to enhance our privacy program. We made a clear and formal long-term commitment to giving users tools to control how they share on Facebook. We also have undergone two audits by the Office of the Irish Data Protection Commissioner. The audits comprehensively reviewed our compliance with Irish data protection law, which is grounded in European data protection principles. As part of the audit process, we agreed to enhance various data protection and privacy practices to ensure compliance with the law and adherence to industry best practices.

• Safety. We design our products to include safety tools. These tools are coupled with educational resources and partnerships with online safety experts to offer protections for all users, particularly teenagers. We take into account the unique needs of teenagers who use our service and employ age-appropriate settings that restrict their visibility, limit the audience with whom they can share, and help prevent unwanted contact from strangers.

Our abuse reporting infrastructure allows anyone on Facebook to report inappropriate, offensive, or dangerous content through "report" links found throughout our site. We have enhanced this reporting system to include "Social Reporting," which gives users the option to report content to us, to report content to a trusted friend, or to block the person who posted the content with one easy-to-use tool. Our Safety Advisory Board, comprised of five leading online safety organizations from around the world, advises us on product design and helps us to create comprehensive safety resources for everyone who uses our service. These resources are located in our multimedia Family Safety Center on our website, which also offers special information for parents, educators, teenagers, and members of the law enforcement community. Additionally, we work with law enforcement to help promote the safety of our users as required by law.

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• Security. We invest in technology, processes, and people as part of our commitment to safeguarding our users' information. We use a variety of techniques to protect the data that we are entrusted with, and we rely on multiple layers of network segregation using firewalls to protect against attacks or unauthorized access. We also employ proprietary technologies to protect our users. For example, if we suspect that a user's account may have been compromised, we may use a process that we refer to as "social authentication" to validate that the person accessing the account is the actual account holder. The process of social authentication may include asking the person accessing the account to identify photos of the account holder's friends. Our security team actively scans for security vulnerabilities using commercial tools, penetration tests, code security reviews, and internal and external audits. We also have a network of geographically distributed single-tenant data centers, and we take measures to protect the information stored in these data centers.

Competition

Our business is characterized by innovation, rapid change, and disruptive technologies.  We face significant competition in every aspect of our business, including from companies that provide tools to facilitate the sharing of information, that enable marketers to display personalized advertising and that provide development platforms for application- developers.  We compete with the following: 

• Companies that offer full-featured products that replicate the range of communications and related capabilities we provide.  These offerings include, for example, Google+, which Google has integrated with certain of its products, including search and Android, as well as other, largely regional, social networks that have strong positions in particular countries, such as Mixi in Japan and vKontakte and Odnoklassniki in Russia.

• Companies that develop applications, particularly mobile applications, that replicate discrete capabilities we provide, such as photo-sharing, messaging, and micro-blogging.

• Companies that provide web- and mobile-based information and entertainment products and services that are designed to engage users.

• Companies that offer platforms for game developers to reach broad audiences with free-to-play games including Apple's iOS and Google's Android mobile platforms.

• Traditional and online businesses that provide media for marketers to reach their audiences and/or develop tools and systems for managing and optimizing advertising campaigns.

We compete to attract, engage, and retain users, to attract and retain marketers, to attract and retain developers to build compelling apps and websites that integrate with Facebook, and to attract and retain highly talented individuals, especially software engineers, designers, and product managers.

As we introduce new products, as our existing products evolve, or as other companies introduce new products and services, we may become subject to additional competition. 

Technology

We have assembled a team of highly skilled engineers and computer scientists whose expertise spans a broad range of technical areas. We make significant investments in product and feature development, data management and personalization technologies, large-scale systems and scalable infrastructure, mobile technologies, and advertising technologies, including:

• Product and Feature Development. We aim to improve our existing products continuously and to develop new products for our users, developers, and marketers. Our product development philosophy is centered on continuous innovation in creating products that are social by design, which means that our products are designed to place people and their social interactions at the core of the product experience.

• Data Management and Personalization Technologies. To provide each user with a personalized Facebook experience, we must process and analyze a vast and growing amount of content shared by our users, developers, and marketers and surface the most relevant content in real time. As such, we invest extensively in developing technologies and analytics in areas including content optimization and delivery, graph query, media storage and serving, large-scale data management, and software performance.

• Large-Scale Systems and Scalable Infrastructure. Our products are built on a shared computing infrastructure. We use a combination of off-the-shelf and custom software running on clusters of commodity computers to amass substantial computing capability. Our infrastructure has enabled the storage and processing of large datasets and facilitated the deployment of our products on a global scale. As our user base grows, and the level of engagement and sharing from our

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users continues to increase, our computing needs continue to expand. We aim to provide our products rapidly and reliably to all users around the world, including in countries where we do not expect significant short-term monetization. As the number of international users increases we are investing in extending our infrastructure to be closer to our users wherever they are in the world. We are currently building our first major custom international datacenter presence in Lulea, Sweden, which is expected to be operational in the first half of 2013.

• Mobile Technologies.In order to providing a high-quality experience on a wide variety of mobile devices and operating systems, we invest in developing novel techniques and technologies including: custom graphics rendering, operating system customizations, development tools, systems for customizing the user experience based on a variety of factors, and systems for monitoring the behavior of the applications in the field.

• Advertising Technologies. We invest extensively in advertising technology capable of serving billions of ad impressions every day while maximizing the relevance of each impression to selected users based upon the information that users have chosen to share. Our system manages our entire set of ads, the selected audiences, and the marketers' bids to determine which ads to show each person and how to display them for every page on Facebook. We use an advanced click prediction system that weighs many real-time updated features using automated learning techniques. Our technology incorporates the estimated click-through rate with both the marketer's bid and a user relevancy signal to select the optimal ads to show.

Our research and development expenses were $1.4 billion, $388 million and $144 million in 2012, 2011, and 2010, respectively. For information about our research and development expenses, see Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations - Results of Operations - Research and development" of this Annual Report on Form 10-K.

Sales and Operations

The majority of our marketers use our self-service ad platform to establish accounts and to launch and manage their advertising campaigns. We work directly with advertisers, through traditional advertising agencies and with an ecosystem of agencies that have a specialized focus on Facebook advertising. We also have a global sales force that is focused on attracting and retaining marketers and providing support to them throughout the stages of the advertising campaign cycle from pre-purchase decision making to real-time optimizations to post-campaign analytics. We currently operate more than 30 sales offices around the globe.

We have operations teams to provide support for our users, developers, and marketers in five regional centers located in Menlo Park, California; Austin, Texas; Dublin, Ireland; Hyderabad, India; and Singapore. We also invest in and rely on self-service tools to provide direct customer support to our users, developers, and marketers.

Marketing

To date, the Facebook user community has grown virally with users inviting their friends to connect with them, supported by internal efforts to stimulate user awareness and interest. In addition we have invested and will continue to invest in marketing our services to build our brand and user base around the world. We leverage the utility of our products and our social distribution channels as our most effective marketing tools. In addition, we undertake various user acquisition efforts and regularly host events and conferences to engage with developers and marketers.

Intellectual Property

To establish and protect our proprietary rights, we rely on a combination of patents, patent applications, trademarks, copyrights, trade secrets, including know-how, license agreements, confidentiality procedures, non-disclosure agreements with third parties, employee disclosure and invention assignment agreements, and other contractual rights. In addition, to further protect our proprietary rights, from time to time we have purchased patents and patent applications from third parties. We do not believe that our proprietary technology is dependent on any single patent or copyright or groups of related patents or copyrights. We believe the duration of our patents is adequate relative to the expected lives of our products.

Government Regulation

We are subject to a number of U.S. federal and state, and foreign laws and regulations that affect companies conducting business on the Internet, many of which are still evolving and being tested in courts, and could be interpreted in ways that could harm our business. These may involve user privacy, rights of publicity, data protection, content, intellectual property, distribution, electronic contracts and other communications, competition, protection of minors, consumer protection, taxation and online payment services. In particular, we are subject to federal, state, and foreign laws regarding privacy and protection of user data. Foreign data protection, privacy, and other laws and regulations are often more restrictive than those in the United States. U.S. federal and state and foreign laws and regulations are constantly evolving and can be subject to significant change. In addition, the application and interpretation of these laws and regulations are often uncertain, particularly in the new and rapidly-evolving industry in which we operate. There

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are also a number of legislative proposals pending before the U.S. Congress, various state legislative bodies, and foreign governments concerning data protection which could affect us. For example, a revision to the 1995 European Union Data Protection Directive is currently being considered by legislative bodies that may include more stringent operational requirements for data processors and significant penalties for non-compliance.

In August 2012, the FTC approved a settlement agreement with us to resolve an investigation into various practices, that, among other things, requires us to establish and refine certain practices with respect to treatment of user data and privacy settings and also requires we complete bi-annual independent privacy assessments. Violation of existing or future regulatory orders or consent decrees could subject us to substantial monetary fines and other penalties that could negatively affect our financial condition and results of operations.

Various laws and regulations in the United States and abroad, such as the Bank Secrecy Act, the Dodd-Frank Act, the USA PATRIOT Act, and the Credit CARD Act, impose certain anti-money laundering requirements on companies that are financial institutions or that provide financial products and services. Under these laws and regulations, financial institutions are broadly defined to include money services businesses such as money transmitters, check cashers, and sellers or issuers of stored value. Requirements imposed on financial institutions under these laws include customer identification and verification programs, record retention policies and procedures, and transaction reporting. To increase flexibility in how our use of Payments may evolve and to mitigate regulatory uncertainty, we have applied through subsidiaries for certain money transmitter licenses in the United States and similar licenses in certain foreign countries, which will generally require us to show compliance with many domestic and foreign laws relating to money transmission, gift cards and other prepaid access instruments, electronic funds transfers, anti-money laundering, counter-terrorist financing, gambling, banking and lending, and import and export restrictions.

Employees

As of December 31, 2012, we had 4,619 employees.

Corporate Information

We were incorporated in Delaware in July 2004. We completed our initial public offering in May 2012 and our Class A common stock is listed on The Nasdaq Global Select Market under the symbol "FB." Our principal executive offices are located at 1601 Willow Road, Menlo Park, California 94025, and our telephone number is (650) 308-7300.

Facebook, the Facebook logo, FB, the Like Button, Instagram and our other registered or common law trademarks, service marks, or trade names appearing in this Annual Report on Form 10-K are the property of Facebook, Inc. or its affiliates. Other trademarks, service marks, or trade names appearing in this Annual Report on Form 10-K are the property of their respective owners.

Information about Segment and Geographic Revenue

Information about segment and geographic revenue is set forth in Notes 1 and 14 of our Notes to Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" of this Annual Report on Form 10-K.

Available Information

Our website address is www.facebook.com. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments to reports filed pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended (Exchange Act), are filed with the U.S. Securities and Exchange Commission (SEC). We are subject to the informational requirements of the Exchange Act and file or furnish reports, proxy statements, and other information with the SEC. Such reports and other information filed by the Company with the SEC are available free of charge on our website at investor.fb.com when such reports are available on the SEC's website. We use our investor.fb.com website as a means of disclosing material non-public information and for complying with our disclosure obligations under Regulation FD. Accordingly, investors should monitor such portions of investor.fb.com, in addition to following press releases, SEC filings and public conference calls and webcasts.    

The public may read and copy any materials filed by Facebook with the SEC at the SEC's Public Reference Room at 100 F Street, NE, Room 1580, Washington, DC 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC at www.sec.gov.

The contents of the websites referred to above are not incorporated into this filing. Further, our references to the URLs for these websites are intended to be inactive textual references only.

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Item 1A. Risk Factors

Certain factors may have a material adverse effect on our business, financial condition and results of operations. You should consider carefully the risks and uncertainties described below, in addition to other information contained in this Annual Report on Form 10-K, including our consolidated financial statements and related notes. The risks and uncertainties described below are not the only ones we face. Additional risks and uncertainties that we are unaware of, or that we currently believe are not material, may also become important factors that adversely affect our business. If any of the following risks actually occurs, our business, financial condition, results of operations, and future prospects could be materially and adversely affected. In that event, the trading price of our Class A common stock could decline, and you could lose part or all of your investment.

Risks Related to Our Business and Industry

If we fail to retain existing users or add new users, or if our users decrease their level of engagement with Facebook, our revenue, financial results, and business may be significantly harmed.

The size of our user base and our users' level of engagement are critical to our success. We had 1.06 billion monthly active users (MAUs) as of December 31, 2012. Our financial performance has been and will continue to be significantly determined by our success in adding, retaining, and engaging active users. We anticipate that our active user growth rate will decline over time as the size of our active user base increases, and as we achieve higher market penetration rates. To the extent our active user growth rate slows, our business performance will become increasingly dependent on our ability to increase levels of user engagement and monetization. If people do not perceive our products to be useful, reliable, and trustworthy, we may not be able to attract or retain users or otherwise maintain or increase the frequency and duration of their engagement. A number of other social networking companies that achieved early popularity have since seen their active user bases or levels of engagement decline, in some cases precipitously. There is no guarantee that we will not experience a similar erosion of our active user base or engagement levels. Our user engagement patterns have changed over time and can be difficult to measure, particularly as users engage increasingly via mobile devices and as we introduce new and different services. Any decrease in user retention, growth, or engagement could render Facebook less attractive to developers and marketers, which may have a material and adverse impact on our revenue, business, financial condition, and results of operations. Any number of factors could potentially negatively affect user retention, growth, and engagement, including if:

• users increasingly engage with other products or activities;

• we fail to introduce new and improved products or if we introduce new products or services that are not favorably received;

• users feel that their Facebook experience is diminished as a result of the decisions we make with respect to the frequency, prominence, and size of ads that we display;

• we are unable to continue to develop products for mobile devices that users find engaging, that work with a variety of mobile operating systems and networks, and that achieve a high level of market acceptance;

• there are changes in user sentiment about the quality or usefulness of our products or concerns related to privacy and sharing, safety, security, or other factors;

• we are unable to manage and prioritize information to ensure users are presented with content that is interesting, useful, and relevant to them;

• users adopt new technologies where Facebook may not be featured or otherwise available;

• there are adverse changes in our products that are mandated by legislation, regulatory authorities, or litigation, including settlements or consent decrees;

• technical or other problems prevent us from delivering our products in a rapid and reliable manner or otherwise affect the user experience, such as any failure to prevent spam or similar content;

• we adopt policies or procedures related to areas such as sharing or user data that are perceived negatively by our users or the general public;

• we fail to provide adequate customer service to users, developers, or marketers;

• we, our Platform developers, or other companies in our industry are the subject of adverse media reports or other negative publicity; or

• our current or future products, such as the Facebook Platform, reduce user activity on Facebook by making it easier for

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our users to interact and share on third-party websites.

If we are unable to maintain and increase our user base and user engagement, our revenue and financial results may be adversely affected.

We generate a substantial majority of our revenue from advertising. The loss of marketers, or reduction in spending by marketers with Facebook, could seriously harm our business.

The substantial majority of our revenue is currently generated from third parties advertising on Facebook. For 2012, 2011, and 2010, advertising accounted for 84%, 85% and 95%, respectively, of our revenue. As is common in the industry, our marketers do not have long-term advertising commitments with us. Many of our marketers spend only a relatively small portion of their overall advertising budget with us. In addition, marketers may view some of our products as experimental and unproven. Marketers will not continue to do business with us, or they will reduce the prices they are willing to pay to advertise with us, if we do not deliver ads in an effective manner, or if they do not believe that their investment in advertising with us will generate a competitive return relative to other alternatives. Our advertising revenue could be adversely affected by a number of other factors, including:

• decreases in user engagement, including time spent on Facebook;

• increased user access to and engagement with Facebook through our mobile products or other new devices in the future, where our ability to monetize is less proven than it is from use on personal computers;

• product changes or inventory management decisions we may make that reduce the size, frequency, or relative prominence of ads displayed on Facebook;

• our inability to increase advertiser demand, which affects pricing;

• our inability to increase the quality of ads shown to users, particularly on mobile devices;

• the accuracy of our analytics and measurement solutions that demonstrate the value of our ads, or our ability to further improve such tools;

• decisions by marketers to use our free products, such as Facebook Pages, instead of advertising on Facebook;

• loss of advertising market share to our competitors, including if such competitors offer more integrated products;

• adverse legal developments relating to advertising, including legislative and regulatory developments and developments in litigation;

• adverse media reports or other negative publicity involving us, our Platform developers, or other companies in our industry;

• our inability to create new products that sustain or increase the value of our ads;

• the degree to which users opt out of social ads;

• the degree to which users cease or reduce the number of times they click on our ads;

• changes in the way online advertising is priced;

• the impact of new technologies that could block or obscure the display of our ads; and

• the impact of macroeconomic conditions and conditions in the advertising industry in general.

The occurrence of any of these or other factors could result in a reduction in demand for our ads, which may reduce the prices we receive for our ads, or cause marketers to stop advertising with us altogether, either of which would negatively affect our revenue and financial results.

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Growth in the use of Facebook through our mobile products as a substitute for use on personal computers may negatively affect our revenue and financial results.

We had 680 million mobile MAUs in December 2012. While most of our mobile users also access Facebook through personal computers, we anticipate that the rate of growth in mobile usage will exceed the growth in usage through personal computers for the foreseeable future and that the usage through personal computers may decline or continue to decline in certain markets, in part due to our focus on developing mobile products to encourage mobile usage of Facebook. For example, during the fourth quarter of 2012, the number of daily active users (DAUs) using personal computers declined modestly compared to the third quarter of 2012, including declines in key markets such as the United States, while mobile DAUs continued to increase. While we began showing ads in users' mobile News Feeds in early 2012, we have generated only a small portion of our revenue from the use of Facebook mobile products to date. In addition, we do not currently offer our Payments infrastructure to applications on mobile devices. If users increasingly access Facebook mobile products as a substitute for access through personal computers, and if we are unable to continue to grow mobile revenues, or if we incur excessive expenses in this effort, our financial performance and ability to grow revenue would be negatively affected.

Facebook user growth and engagement on mobile devices depend upon effective operation with mobile operating systems, networks, and standards that we do not control.

There is no guarantee that popular mobile devices will continue to feature Facebook, or that mobile device users will continue to use Facebook rather than competing products. We are dependent on the interoperability of Facebook with popular mobile operating systems that we do not control, such as Android and iOS, and any changes in such systems that degrade our products' functionality or give preferential treatment to competitive products could adversely affect Facebook usage on mobile devices. Additionally, in order to deliver high quality mobile products, it is important that our products work well with a range of mobile technologies, systems, networks, and standards that we do not control. We may not be successful in developing relationships with key participants in the mobile industry or in developing products that operate effectively with these technologies, systems, networks, or standards. In the event that it is more difficult for our users to access and use Facebook on their mobile devices, or if our users choose not to access or use Facebook on their mobile devices or use mobile products that do not offer access to Facebook, our user growth and user engagement could be harmed.

Our business is highly competitive. Competition presents an ongoing threat to the success of our business.

We face significant competition in every aspect of our business, including from companies that provide tools to facilitate the sharing of information, companies that enable marketers to display personalized advertising and companies that provide development platforms for applications developers. We compete with companies that offer full-featured products that replicate the range of communications and related capabilities we provide. These offerings include, for example, Google+, which Google has integrated with certain of its products, including search and Android, as well as other, largely regional, social networks that have strong positions in particular countries, such as Mixi in Japan and vKontakte and Odnoklassniki in Russia. We also complete with companies that develop applications, particularly mobile applications, that replicate discrete capabilities we provide, such as photo-sharing, messaging, and micro-blogging, and companies that provide web- and mobile-based information and entertainment products and services that are designed to engage users and capture time spent online and on mobile devices. In addition, we face competition from traditional and online businesses that provide media for marketers to reach their audiences and/ordevelop tools and systems for managing and optimizing advertising campaigns.

Some of our current and potential competitors may have significantly greater resources or better competitive positions in certain product segments, geographic regions or user demographics than we do. These factors may allow our competitors to respond more effectively than us to new or emerging technologies and changes in market conditions. We believe that some of our users, particularly our younger users, are aware of and actively engaging with other products and services similar to, or as a substitute for, Facebook. For example, we believe that some of our users have reduced their engagement with Facebook in favor of increased engagement with other products and services such as Instagram. In the event that our users increasingly engage with other products and services, we may experience a decline in user engagement and our business could be harmed.

Our competitors may develop products, features, or services that are similar to ours or that achieve greater acceptance, may undertake more far-reaching and successful product development efforts or marketing campaigns, or may adopt more aggressive pricing policies. In addition, Platform partners may use information shared by our users through the Facebook Platform in order to develop products or features that compete with us. Certain competitors, including Google, could use strong or dominant positions in one or more markets to gain competitive advantage against us in areas where we operate including: by integrating competing social networking platforms or features into products they control such as search engines, web browsers, or mobile device operating systems; by making acquisitions; or by making access to Facebook more difficult. As a result, our competitors may acquire and engage users at the expense of the growth or engagement of our user base, which may negatively affect our business and financial results.

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We believe that our ability to compete effectively depends upon many factors both within and beyond our control, including:

• the popularity, usefulness, ease of use, performance, and reliability of our products compared to our competitors;

• the size and composition of our user base;

• the engagement of our users with our products;

• the timing and market acceptance of products, including developments and enhancements to our or our competitors' products;

• our ability to monetize our products, including our ability to successfully monetize mobile usage;

• the frequency, size, and relative prominence of the ads displayed by us or our competitors;

• customer service and support efforts;

• marketing and selling efforts;

• our ability to establish and maintain developers' interest in building on the Facebook Platform;

• changes mandated by legislation, regulatory authorities, or litigation, including settlements and consent decrees, some of which may have a disproportionate effect on us;

• acquisitions or consolidation within our industry, which may result in more formidable competitors;

• our ability to attract, retain, and motivate talented employees, particularly software engineers;

• our ability to cost-effectively manage and grow our operations; and

• our reputation and brand strength relative to our competitors.

If we are not able to compete effectively, our user base and level of user engagement may decrease, which could make us less attractive to developers and marketers and materially and adversely affect our revenue and results of operations.

We may not be successful in our efforts to grow usage of and engagement with the Facebook Platform.

We have made and are continuing to make investments to enable developers to build applications (apps) and websites that integrate with the Facebook Platform. Existing and prospective Platform developers may not be successful in building apps or websites that create and maintain user engagement. Additionally, developers may choose to build on other platforms, including mobile platforms controlled by third parties, rather than building on the Facebook Platform. We are continuously seeking to balance the distribution objectives of our Platform developers with our desire to provide an optimal user experience, and we may not be successful in achieving a balance that continues to attract and retain Platform developers. From time to time, we have taken actions to reduce the volume of communications from Platform developers to users on Facebook with the objective of enhancing the user experience, and such actions have reduced distribution from, user engagement with, and our monetization opportunities from, Facebook-integrated apps and websites. In some instances, these actions have adversely affected our relationships with Platform developers. If we are not successful in our efforts to grow our Platform or if we are unable to build and maintain good relations with Platform developers, our user growth and user engagement and our financial results may be adversely affected.

We may not be successful in our efforts to further monetize the Facebook Platform.

We currently monetize the Facebook Platform in several ways, including ads on pages generated by apps on Facebook, direct advertising on Facebook purchased by Platform developers to drive traffic to their apps and websites, and fees from our Platform developers' use of our Payments infrastructure to sell virtual and digital goods to users accessing Facebook via personal computers. Apps built by developers of social games are currently responsible for substantially all of our revenue derived from Payments. While we have expanded the number of developers using our Payments infrastructure, our overall Payments revenue may decrease or stay flat in future periods. In addition, a relatively small percentage of our users have transacted with Facebook Payments. For example, for the fiscal year ended December 31, 2012, approximately 27 million users purchased virtual goods using Facebook Payments. If the Platform apps that currently generate revenue fail to grow or maintain their users and engagement, if Platform developers do not continue to introduce new apps that attract users and create engagement, if Platform developers reduce their advertising on Facebook, if we fail to maintain good relationships with Platform developers or attract new developers, or if Platform apps outside of social games do not gain popularity and generate significant revenue for us, our financial performance and ability to grow revenue could be adversely affected.

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Additionally, we are actively supporting Platform developers' efforts to develop their own mobile apps and websites that integrate with Facebook. Unlike apps that run within the Facebook website which enable us to show ads and offer Payments, we generally do not directly monetize from Platform developers' integrating their own mobile apps and websites with Facebook. Therefore, our Platform developers' efforts to prioritize Facebook integrations with their own mobile apps or websites may reduce or slow the growth of our user activity that generates advertising and Payments opportunities, which could negatively affect our revenue. Although we believe that there are significant long-term benefits to Facebook resulting from increased engagement on Facebook-integrated websites and mobile apps, these benefits may not offset the possible loss of revenue, in which case our business could be harmed.

Action by governments to restrict access to Facebook in their countries could substantially harm our business and financial results.

It is possible that governments of one or more countries may seek to censor content available on Facebook in their country, restrict access to Facebook from their country entirely, or impose other restrictions that may affect the accessibility of Facebook in their country for an extended period of time or indefinitely. For example, access to Facebook has been or is currently restricted in whole or in part in China, Iran, North Korea, and Syria. In addition, governments in other countries may seek to restrict access to Facebook if they consider us to be in violation of their laws. In the event that access to Facebook is restricted, in whole or in part, in one or more countries or our competitors are able to successfully penetrate geographic markets that we cannot access, our ability to retain or increase our user base and user engagement may be adversely affected, we may not be able to maintain or grow our revenue as anticipated, and our financial results could be adversely affected.

Our new products and changes to existing products could fail to attract or retain users or generate revenue.

Our ability to retain, increase, and engage our user base and to increase our revenue will depend heavily on our ability to create successful new products, both independently and in conjunction with Platform developers or other third parties. We may introduce significant changes to our existing products or develop and introduce new and unproven products, including using technologies with which we have little or no prior development or operating experience. If new or enhanced products fail to engage users, developers, or marketers, we may fail to attract or retain users or to generate sufficient revenue, operating margin, or other value to justify our investments, and our business may be adversely affected. In the future, we may invest in new products and initiatives to generate revenue, but there is no guarantee these approaches will be successful. For example, in 2012, we launched our Gifts product that enables users to send physical or digital gifts to friends. We may not be successful in generating meaningful revenue from this product. If we are not successful with new approaches to monetization, we may not be able to maintain or grow our revenue as anticipated or recover any associated development costs, and our financial results could be adversely affected.

Our culture emphasizes rapid innovation and prioritizes user engagement over short-term financial results.

We have a culture that encourages employees to quickly develop and launch new and innovative products. As our business grows and becomes more complex, our cultural emphasis on moving quickly may result in unintended outcomes or decisions that are poorly received by users, developers, or marketers. Our culture also prioritizes user engagement over short-term financial results, and we frequently make product decisions that may reduce our short-term revenue or profitability if we believe that the decisions are consistent with our mission and benefit the aggregate user experience and will thereby improve our financial performance over the long term. These decisions may not produce the long-term benefits that we expect, in which case our user growth and engagement, our relationships with developers and marketers, and our business and results of operations could be harmed.

If we are not able to maintain and enhance our brand, or if events occur that damage our reputation and brand, our ability to expand our base of users, developers, and marketers may be impaired, and our business and financial results may be harmed.

We believe that the Facebook brand has significantly contributed to the success of our business. We also believe that maintaining and enhancing our brand is critical to expanding our base of users, developers, and marketers. Many of our new users are referred by existing users. Maintaining and enhancing our brand will depend largely on our ability to continue to provide useful, reliable, trustworthy, and innovative products, which we may not do successfully. We may introduce new products or terms of service that users do not like, which may negatively affect our brand. Additionally, the actions of our Platform developers may affect our brand if users do not have a positive experience using third-party apps and websites integrated with Facebook. We have in the past experienced, and we expect that in the future we will continue to experience, media, legislative, or regulatory scrutiny of our decisions regarding user privacy or other issues, which may adversely affect our reputation and brand. We also may fail to provide adequate customer service, which could erode confidence in our brand. Our brand may also be negatively affected by the actions of users that are deemed to be hostile or inappropriate to other users, or by users acting under false or inauthentic identities. Maintaining and enhancing our brand may require us to make substantial investments and these investments may not be successful. If we fail to successfully promote and maintain the Facebook brand or if we incur excessive expenses in this effort, our business and financial results may be adversely affected.

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Improper access to or disclosure of our users' information, or violation of our terms of service or policies, could harm our reputation and adversely affect our business.

Our efforts to protect the information that our users have chosen to share using Facebook may be unsuccessful due to the actions of third parties, software bugs or other technical malfunctions, employee error or malfeasance, or other factors. In addition, third parties may attempt to fraudulently induce employees or users to disclose information in order to gain access to our data or our users' data. If any of these events occur, our users' information could be accessed or disclosed improperly. Our Data Use Policy governs the use of information that users have chosen to share using Facebook and how that information may be used by us and third parties. Some Platform developers may store information provided by our users through apps on the Facebook Platform or websites integrated with Facebook. If these third parties or Platform developers fail to adopt or adhere to adequate data security practices or fail to comply with our terms and policies, or in the event of a breach of their networks, our users' data may be improperly accessed or disclosed.

Any incidents involving unauthorized access to or improper use of the information of our users or incidents involving violation of our terms of service or policies, including our Data Use Policy, could damage our reputation and our brand and diminish our competitive position. In addition, the affected users or government authorities could initiate legal or regulatory action against us in connection with such incidents, which could cause us to incur significant expense and liability or result in orders or consent decrees forcing us to modify our business practices. Any of these events could have a material and adverse effect on our business, reputation, or financial results.

Unfavorable media coverage could negatively affect our business.

We receive a high degree of media coverage around the world. Unfavorable publicity regarding, for example, our privacy practices, product changes, product quality, litigation or regulatory activity, or the actions of our Platform developers or our users, could adversely affect our reputation. Such negative publicity also could have an adverse effect on the size, engagement, and loyalty of our user base and result in decreased revenue, which could adversely affect our business and financial results.

Our financial results will fluctuate from quarter to quarter and are difficult to predict.

Our quarterly financial results have fluctuated in the past and will fluctuate in the future. Additionally, we have a limited operating history with the current scale of our business, which makes it difficult to forecast our future results. As a result, you should not rely upon our past quarterly financial results as indicators of future performance. You should take into account the risks and uncertainties frequently encountered by companies in rapidly evolving markets. Our financial results in any given quarter can be influenced by numerous factors, many of which we are unable to predict or are outside of our control, including:

• our ability to maintain and grow our user base and user engagement;

• our ability to attract and retain marketers in a particular period;

• fluctuations in spending by our marketers due to seasonality, such as historically strong spending in the fourth quarter of each year, or other factors;

• the number of ads shown to users;

• the pricing of our ads and other products;

• the rate of growth in mobile usage compared to usage through personal computers, and our ability to monetize through our mobile products;

• our ability to maintain or increase Payments and other fees revenue;

• the diversification and growth of revenue sources beyond advertising and Payments;

• the development and introduction of new products or services by us or our competitors;

• increases in marketing, sales, and other operating expenses that we may incur to grow and expand our operations and to remain competitive;

• our ability to maintain gross margins and operating margins;

• costs related to the acquisition of businesses, talent, technologies or intellectual property, including potentially significant amortization costs;

• our ability to obtain equipment and components for our data centers and other technical infrastructure in a timely and

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cost-effective manner;

• system failures which could prevent us from serving ads for any period of time, or breaches of security or privacy, and the costs associated with remediating any such failures or breaches;

• inaccessibility of Facebook due to third-party actions;

• share-based compensation expense;

• adverse litigation judgments, settlements, or other litigation-related costs;

• changes in the legislative or regulatory environment, including with respect to privacy, or enforcement by government regulators, including fines, orders, or consent decrees;

• the overall tax rate for our business, which may be affected by the financial results of our international subsidiaries;

• fluctuations in currency exchange rates and changes in the proportion of our revenue and expenses denominated in foreign currencies;

• fluctuations in the market values of our portfolio investments and in interest rates;

• changes in U.S. generally accepted accounting principles; and

• changes in global business or macroeconomic conditions.

We expect our rates of growth will decline in the future.

We believe that our rates of user and revenue growth will decline over time. For example, our revenue grew 37% from 2011 to 2012, 88% from 2010 to 2011 and 154% from 2009 year to 2010. Historically, our user growth has been a primary driver of growth in our revenue. While our periodic rates of growth may be flat or increase from time to time, we expect that our user growth and revenue growth rates will decline over time as the size of our active user base increases and as we achieve higher market penetration rates. As our growth rates decline, investors' perceptions of our business may be adversely affected and the trading price of our Class A common stock could decline.

Our costs are continuing to grow, which could harm our business and profitability.

Providing our products to our users is costly and we expect our expenses to continue to increase in the future as we broaden our user base, as users increase the number of connections and amount of data they share with us, as we develop and implement new product features that require more computing infrastructure. Historically, our costs have increased each year due to these factors and we expect to continue to incur increasing costs, in particular for servers, storage, power, and data centers, to support our anticipated future growth. We expect to continue to invest in our global infrastructure in order to provide our products rapidly and reliably to all users around the world, including in countries where we do not expect significant short-term monetization. In addition, our costs may increase as we hire additional employees, particularly as a result of the significant competition that we face to attract and retain technical talent. Our expenses may continue to grow faster than our revenue over time. Our expenses may be greater than we anticipate, and our investments may not be successful. In addition, we may increase marketing, sales, and other operating expenses in order to grow and expand our operations and to remain competitive. Increases in our costs may adversely affect our business and profitability.

Our business is subject to complex and evolving U.S. and foreign laws and regulations regarding privacy, data protection, and other matters. Many of these laws and regulations are subject to change and uncertain interpretation, and could result in claims, changes to our business practices, monetary penalties, increased cost of operations, or declines in user growth or engagement, or otherwise harm our business.

We are subject to a variety of laws and regulations in the United States and abroad that involve matters central to our business, including user privacy, rights of publicity, data protection, content, intellectual property, distribution, electronic contracts and other communications, competition, protection of minors, consumer protection, taxation, securities law compliance, and online payment services. The introduction of new products may subject us to additional laws and regulations. For example, depending on how our new Gifts product evolves, we may be subject to laws and regulations governing returns, taxability of purchases, purchase of restricted products such as alcohol, product liability, and international import and export restrictions. In addition, foreign data protection, privacy, and other laws and regulations are often more restrictive than those in the United States. These U.S. federal and state and foreign laws and regulations, which can be enforced by private parties or government entities, are constantly evolving and can be subject to significant change. In addition, the application and interpretation of these laws and regulations are often uncertain, particularly in the new and rapidly evolving industry in which we operate. For example, the interpretation of some laws and regulations that govern the use of names and likenesses in connection with advertising and marketing activities is unsettled and developments in this area could

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affect the manner in which we design our products, as well as our terms of use. A number of proposals are pending before federal, state, and foreign legislative and regulatory bodies that could significantly affect our business. For example, a revision to the 1995 European Union Data Protection Directive is currently being considered by European legislative bodies that may include more stringent operational requirements for data processors and significant penalties for non-compliance. Similarly, there have been a number of recent legislative proposals in the United States, at both the federal and state level, that would impose new obligations in areas such as privacy and liability for copyright infringement by third parties. These existing and proposed laws and regulations can be costly to comply with and can delay or impede the development of new products, result in negative publicity, increase our operating costs, require significant management time and attention, and subject us to inquiries or investigations, claims or other remedies, including fines or demands that we modify or cease existing business practices.

We have been subject to regulatory investigations and settlements and we expect to continue to be subject to such proceedings in the future, which could cause us to incur substantial costs or require us to change our business practices in a manner materially adverse to our business.

From time to time, we receive inquiries from regulators regarding our compliance with laws and other matters. For example, in 2012, the Federal Trade Commission approved a settlement agreement with us that, among other things, requires us to establish and refine certain practices with respect to treatment of user data and privacy settings and also requires that we complete bi-annual independent privacy assessments. As another example, in 2011 and 2012, the Irish Data Protection Commissioner audited the data, security, and privacy practices and policies of Facebook Ireland. We expect to continue to be the subject of regulatory investigations and audits in the future by these and other regulators throughout the world.

It is possible that a regulatory inquiry might result in changes to our policies or practices. Violation of existing or future regulatory orders or consent decrees could subject us to substantial monetary fines and other penalties that could negatively affect our financial condition and results of operations. In addition, it is possible that future orders issued by, or enforcement actions initiated by, regulatory authorities could cause us to incur substantial costs or require us to change our business practices in a manner materially adverse to our business.

If we are unable to protect our intellectual property, the value of our brand and other intangible assets may be diminished, and our business may be adversely affected.

We rely and expect to continue to rely on a combination of confidentiality and license agreements with our employees, consultants, and third parties with whom we have relationships, as well as trademark, copyright, patent, trade secret, and domain name protection laws, to protect our proprietary rights. In the United States and internationally, we have filed various applications for protection of certain aspects of our intellectual property, and we currently hold a number of issued patents in multiple jurisdictions and have acquired patents and patent applications from third parties. In addition, in the future we may acquire additional patents or patent portfolios, which could require significant cash expenditures. Third parties may knowingly or unknowingly infringe our proprietary rights, third parties may challenge proprietary rights held by us, and pending and future trademark and patent applications may not be approved. In addition, effective intellectual property protection may not be available in every country in which we operate or intend to operate our business. In any or all of these cases, we may be required to expend significant time and expense in order to prevent infringement or to enforce our rights. Although we have taken measures to protect our proprietary rights, there can be no assurance that others will not offer products or concepts that are substantially similar to ours and compete with our business. In addition, we regularly contribute software source code under open source licenses and have made other technology we developed available under other open licenses, and we include open source software in our products. For example, we have contributed certain specifications and designs related to our data center equipment to the Open Compute Project Foundation, a non-profit entity that shares and develops such information with the technology community, under the Open Web Foundation License. As a result of our open source contributions and the use of open source in our products, we may license or be required to license innovations that turn out to be material to our business and may also be exposed to increased litigation risk. If the protection of our proprietary rights is inadequate to prevent unauthorized use or appropriation by third parties, the value of our brand and other intangible assets may be diminished and competitors may be able to more effectively mimic our service and methods of operations. Any of these events could have an adverse effect on our business and financial results.

We are currently, and expect to be in the future, party to patent lawsuits and other intellectual property rights claims that are expensive and time consuming, and, if resolved adversely, could have a significant impact on our business, financial condition, or results of operations.

Companies in the Internet, technology, and media industries own large numbers of patents, copyrights, trademarks, and trade secrets, and frequently enter into litigation based on allegations of infringement, misappropriation, or other violations of intellectual property or other rights. In addition, various "non-practicing entities" that own patents and other intellectual property rights often attempt to aggressively assert their rights in order to extract value from technology companies. Furthermore, from time to time we may introduce new products, including in areas where we currently do not compete, which could increase our exposure to patent and

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other intellectual property claims from competitors and non-practicing entities.

From time to time, we receive notice letters from patent holders alleging that certain of our products and services infringe their patent rights. We presently are involved in a number of intellectual property lawsuits, and as we face increasing competition and gain an increasingly high profile, we expect the number of patent and other intellectual property claims against us to grow. Defending patent and other intellectual property litigation is costly and can impose a significant burden on management and employees, and there can be no assurances that favorable final outcomes will be obtained in all cases. In addition, plaintiffs may seek, and we may become subject to, preliminary or provisional rulings in the course of any such litigation, including potential preliminary injunctions requiring us to cease some or all of our operations. We may decide to settle such lawsuits and disputes on terms that are unfavorable to us. Similarly, if any litigation to which we are a party is resolved adversely, we may be subject to an unfavorable judgment that may not be reversed upon appeal. The terms of such a settlement or judgment may require us to cease some or all of our operations or pay substantial amounts to the other party. In addition, we may have to seek a license to continue practices found to be in violation of a third party's rights, which may not be available on reasonable terms, or at all, and may significantly increase our operating costs and expenses. As a result, we may also be required to develop alternative non-infringing technology or practices or discontinue the practices. The development of alternative non-infringing technology or practices could require significant effort and expense or may not be feasible. Our business, financial condition, and results of operations could be adversely affected as a result of an unfavorable resolution of the disputes and litigation referred to above.

We are involved in numerous class action lawsuits and other litigation matters that are expensive and time consuming, and, if resolved adversely, could harm our business, financial condition, or results of operations.

In addition to intellectual property claims, we are also involved in numerous other lawsuits, including putative class action lawsuits brought by users and marketers, many of which claim statutory damages, and we anticipate that we will continue to be a target for numerous lawsuits in the future. Because we have over a billion users, the plaintiffs in class action cases filed against us typically claim enormous monetary damages even if the alleged per-user harm is small or non-existent. Any negative outcome from such lawsuits could result in payments of substantial monetary damages or fines, or changes to our products or business practices, and accordingly our business, financial condition, or results of operations could be materially and adversely affected. Although the results of such lawsuits and claims cannot be predicted with certainty, we do not believe that the final outcome of those matters relating to our products that we currently face will have a material adverse effect on our business, financial condition, or results of operations. In addition, following our initial public offering (IPO), we became the subject of stockholder class action suits. We believe these lawsuits are without merit and are vigorously defending these lawsuits.

There can be no assurances that a favorable final outcome will be obtained in all our cases, and defending any lawsuit is costly and can impose a significant burden on management and employees. Any litigation to which we are a party may result in an onerous or unfavorable judgment that may not be reversed upon appeal or in payments of substantial monetary damages or fines, or we may decide to settle lawsuits on similarly unfavorable terms, which could adversely affect our business, financial conditions, or results of operations.

Our CEO has control over key decision making as a result of his control of a majority of our voting stock.

As a result of voting agreements with certain stockholders, together with the shares he holds, Mark Zuckerberg, our founder, Chairman, and CEO, is able to exercise voting rights with respect to a majority of the voting power of our outstanding capital stock as of December 31, 2012. Mr. Zuckerberg therefore has the ability to control the outcome of matters submitted to our stockholders for approval, including the election of directors and any merger, consolidation, or sale of all or substantially all of our assets. This concentrated control could delay, defer, or prevent a change of control, merger, consolidation, or sale of all or substantially all of our assets that our other stockholders support, or conversely this concentrated control could result in the consummation of such a transaction that our other stockholders do not support. This concentrated control could also discourage a potential investor from acquiring our Class A common stock due to the limited voting power of such stock relative to the Class B common stock and might harm the trading price of our Class A common stock. In addition, Mr. Zuckerberg has the ability to control the management and major strategic investments of our company as a result of his position as our CEO and his ability to control the election or replacement of our directors. In the event of his death, the shares of our capital stock that Mr. Zuckerberg owns will be transferred to the persons or entities that he designates. As a board member and officer, Mr. Zuckerberg owes a fiduciary duty to our stockholders and must act in good faith in a manner he reasonably believes to be in the best interests of our stockholders. As a stockholder, even a controlling stockholder, Mr. Zuckerberg is entitled to vote his shares, and shares over which he has voting control as a result of voting agreements, in his own interests, which may not always be in the interests of our stockholders generally.

We plan to continue to make acquisitions, which could require significant management attention, disrupt our business, result in dilution to our stockholders, and adversely affect our financial results.

As part of our business strategy, we have made and intend to make acquisitions to add specialized employees, complementary companies, products, or technologies. Our ability to acquire and integrate larger or more complex companies, products, or technologies

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in a successful manner is unproven. In the future, we may not be able to find other suitable acquisition candidates, and we may not be able to complete acquisitions on favorable terms, if at all. Any future acquisitions we complete could be viewed negatively by users, developers, marketers, or investors, and our acquisitions may not achieve our goals. For example, in August 2012, we acquired Instagram, but we are still focused on user growth and the users' experience and do not yet derive any direct revenue from Instagram. In addition, if we fail to successfully close or integrate any acquisitions, integrate the products or technologies associated with such acquisitions into our company, or identify and address liabilities associated with the acquired business or assets, our business, revenue, and operating results could be adversely affected. Any integration process may require significant time and resources, and we may not be able to manage the process successfully. We may not successfully evaluate or utilize the acquired products, technology, or personnel, or accurately forecast the financial impact of an acquisition transaction, including accounting charges. In addition, our ability to conduct due diligence with respect to acquisitions, and our ability to evaluate the results of such due diligence, is dependent upon the accuracy and completeness of statements and disclosures made or actions taken by the companies we acquire or their representatives. Despite our efforts, there could be significant liabilities or deficiencies associated with the business, assets, products, financial condition or accounting practices related to the assets or companies we acquire. In addition, we may have to pay cash, incur debt, or issue equity securities to pay for acquisitions, any of which could adversely affect our financial results. The sale of equity or issuance of debt to finance any such acquisitions could result in dilution to our stockholders. The incurrence of indebtedness would result in increased fixed obligations and could also include covenants or other restrictions that would impede our ability to manage our operations.

Our business is dependent on our ability to maintain and scale our technical infrastructure, and any significant disruption in our service could damage our reputation, result in a potential loss of users and engagement, and adversely affect our financial results.

Our reputation and ability to attract, retain, and serve our users is dependent upon the reliable performance of Facebook and our underlying technical infrastructure. Our systems may not be adequately designed with the necessary reliability and redundancy to avoid performance delays or outages that could be harmful to our business. If Facebook is unavailable when users attempt to access it, or if it does not load as quickly as they expect, users may not return to our website as often in the future, or at all. As our user base and the amount and types of information shared on Facebook continue to grow, we will need an increasing amount of technical infrastructure, including network capacity, and computing power, to continue to satisfy the needs of our users. It is possible that we may fail to effectively scale and grow our technical infrastructure to accommodate these increased demands. In addition, our business is subject to interruptions, delays, or failures resulting from earthquakes, adverse weather conditions, other natural disasters, power loss, terrorism, or other catastrophic events.

A substantial portion of our network infrastructure is provided by third parties. Any disruption or failure in the services we receive from these providers could harm our ability to handle existing or increased traffic and could significantly harm our business. Any financial or other difficulties these providers face may adversely affect our business, and we exercise little control over these providers, which increases our vulnerability to problems with the services they provide.

We could experience unforeseen difficulties in building and operating key portions of our technical infrastructure.

We have designed and built our own data centers and key portions of our technical infrastructure through which we serve our products, and we plan to continue to significantly expand the size of our infrastructure primarily through data centers and other projects. The infrastructure expansion we are undertaking is complex, and unanticipated delays in the completion of these projects or availability of components may lead to increased project costs, operational inefficiencies, or interruptions in the delivery or degradation of the quality of our products. In addition, there may be issues related to this infrastructure that are not identified during the testing phases of design and implementation, which may only become evident after we have started to fully utilize the underlying equipment, that could further degrade the user experience or increase our costs.

Our software is highly technical, and if it contains undetected errors, our business could be adversely affected.

Our products incorporate software that is highly technical and complex. Our software has contained, and may now or in the future contain, undetected errors, bugs, or vulnerabilities. Some errors in our software code may only be discovered after the code has been released. Any errors, bugs, or vulnerabilities discovered in our code after release could result in damage to our reputation, loss of users, loss of revenue, or liability for damages, any of which could adversely affect our business and financial results.

Certain of our user metrics are subject to inherent challenges in measurement, and real or perceived inaccuracies in such metrics may harm our reputation and negatively affect our business.

The numbers of our MAUs, DAUs, and mobile MAUs and average revenue per user (ARPU) are calculated using internal company data based on the activity of user accounts. While these numbers are based on what we believe to be reasonable estimates of our user base for the applicable period of measurement, there are inherent challenges in measuring usage of our products across large online and mobile populations around the world. For example, there may be individuals who maintain one or more Facebook accounts in violation of our terms of service. We estimate, for example, that "duplicate" accounts (an account that a user maintains

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in addition to his or her principal account) may have represented approximately 5.0% of our worldwide MAUs as of December 31, 2012. We also seek to identify "false" accounts, which we divide into two categories: (1) user-misclassified accounts, where users have created personal profiles for a business, organization, or non-human entity such as a pet (such entities are permitted on Facebook using a Page rather than a personal profile under our terms of service); and (2) undesirable accounts, which represent user profiles that we determine are intended to be used for purposes that violate our terms of service, such as spamming. As of December 31, 2012, for example, we estimate user-misclassified accounts may have represented approximately 1.3% of our worldwide MAUs and undesirable accounts may have represented approximately 0.9% of our worldwide MAUs. We believe the percentage of accounts that are duplicate or false is meaningfully lower in developed markets such as the United States or Australia and higher in developing markets such as Indonesia and Turkey. However, these estimates are based on an internal review of a limited sample of accounts and we apply significant judgment in making this determination, such as identifying names that appear to be fake or other behavior that appears inauthentic to the reviewers. As such, our estimation of duplicate or false accounts may not accurately represent the actual number of such accounts. We are continually seeking to improve our ability to identify duplicate or false accounts and estimate the total number of such accounts, and such estimates may change due to improvements or changes in our methodology.

Some of our historical metrics through the second quarter of 2012 have also been affected by applications on certain mobile devices that automatically contact our servers for regular updates with no user action involved, and this activity can cause our system to count the user associated with such a device as an active user on the day such contact occurs. For example, we estimate that less than 5% of our estimated worldwide DAUs as of December 31, 2011 and 2010 resulted from this type of automatic mobile activity, and that this type of activity had a substantially smaller effect on our estimate of worldwide MAUs and mobile MAUs. The impact of this automatic activity on our metrics varied by geography because mobile usage varies in different regions of the world. In addition, our data regarding the geographic location of our users is estimated based on a number of factors, such as the user's IP address and self-disclosed location. These factors may not always accurately reflect the user's actual location. For example, a mobile-only user may appear to be accessing Facebook from the location of the proxy server that the user connects to rather than from the user's actual location. The methodologies used to measure user metrics may also be susceptible to algorithm or other technical errors. For example, in early June 2012, we discovered an error in the algorithm we use to estimate the geographic location of our users that affected our attribution of certain user locations for the period ended March 31, 2012. While this issue did not affect our overall worldwide MAU and DAU numbers, it did affect our attribution of users across different geographic regions. We estimate that the number of MAUs as of March 31, 2012 for the United States & Canada region was overstated as a result of the error by approximately 3% and this overstatement was offset by understatements in other regions. Our estimates for revenue by user location and revenue by user device are also affected by these factors. We regularly review and may adjust our processes for calculating these metrics to improve their accuracy. In addition, our MAU and DAU estimates will differ from estimates published by third parties due to differences in methodology. For example, some third parties are not able to accurately measure mobile users or do not count mobile users for certain user groups or at all in their analyses. If marketers, developers, or investors do not perceive our user metrics to be accurate representations of our user base, or if we discover material inaccuracies in our user metrics, our reputation may be harmed and marketers and developers may be less willing to allocate their budgets or resources to Facebook, which could negatively affect our business and financial results.

We cannot assure you that we will effectively manage our growth.

Our employee headcount and the scope and complexity of our business have increased significantly, with the number of employees increasing to 4,619 as of December 31, 2012 from 3,200 as of December 31, 2011, and we expect headcount growth to continue for the foreseeable future. The growth and expansion of our business and products create significant challenges for our management, operational, and financial resources, including managing multiple relations with users, marketers, Platform developers, and other third parties. In the event of continued growth of our operations or in the number of our third-party relationships, our information technology systems or our internal controls and procedures may not be adequate to support our operations. In addition, some members of our management do not have significant experience managing a large global business operation, so our management may not be able to manage such growth effectively. To effectively manage our growth, we must continue to improve our operational, financial, and management processes and systems and to effectively expand, train, and manage our employee base. As our organization continues to grow, and we are required to implement more complex organizational management structures, we may find it increasingly difficult to maintain the benefits of our corporate culture, including our ability to quickly develop and launch new and innovative products. This could negatively affect our business performance.

The loss of one or more of our key personnel, or our failure to attract and retain other highly qualified personnel in the future, could harm our business.

We currently depend on the continued services and performance of our key personnel, including Mark Zuckerberg and Sheryl K. Sandberg. Although we have entered into employment agreements with Mr. Zuckerberg and Ms. Sandberg, the agreements have no specific duration and constitute at-will employment. In addition, many of our key technologies and systems are custom-made for our business by our personnel. The loss of key personnel, including members of management as well as key engineering, product development, marketing, and sales personnel, could disrupt our operations and have an adverse effect on our business.

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As we continue to grow, we cannot guarantee we will continue to attract the personnel we need to maintain our competitive position. In particular, we intend to hire a significant number of technical personnel in 2013, and we expect to face significant competition from other companies in hiring such personnel, particularly in the San Francisco Bay Area. As we mature, the incentives to attract, retain, and motivate employees provided by our equity awards or by future arrangements may not be as effective as in the past, and if we issue significant equity to attract additional employees, the ownership of our existing stockholders may be further diluted. Additionally, we have a number of current employees whose equity ownership in our company gives them a substantial amount of personal wealth, which could affect their decisions about whether or not to continue to work for us. As a result of these factors, it may be difficult for us to continue to retain and motivate our employees. If we do not succeed in attracting, hiring, and integrating excellent personnel, or retaining and motivating existing personnel, we may be unable to grow effectively.

We may incur liability as a result of information retrieved from or transmitted over the Internet or posted to Facebook and claims related to our products.

We have faced, currently face, and will continue to face claims relating to information that is published or made available on Facebook. In particular, the nature of our business exposes us to claims related to defamation, intellectual property rights, rights of publicity and privacy, and personal injury torts. This risk is enhanced in certain jurisdictions outside the United States where our protection from liability for third-party actions may be unclear and where we may be less protected under local laws than we are in the United States. We could incur significant costs investigating and defending such claims and, if we are found liable, significant damages. If any of these events occur, our business and financial results could be adversely affected.

Computer malware, viruses, hacking and phishing attacks, and spamming could harm our business and results of operations.

Computer malware, viruses, and computer hacking and phishing attacks have become more prevalent in our industry, have occurred on our systems in the past, and may occur on our systems in the future. Because of our prominence, we believe that we are a particularly attractive target for such attacks. Though it is difficult to determine what, if any, harm may directly result from any specific interruption or attack, any failure to maintain performance, reliability, security, and availability of our products and technical infrastructure. Any such failure may harm our reputation and our ability to retain existing users and attract new users.

In addition, spammers attempt to use our products to send targeted and untargeted spam messages to users, which may embarrass or annoy users and make Facebook less user-friendly. We cannot be certain that the technologies and employees that we have to attempt to defeat spamming attacks will be able to eliminate all spam messages from being sent on our platform. As a result of spamming activities, our users may use Facebook less or stop using our products altogether.

Payment transactions on the Facebook Platform may subject us to additional regulatory requirements and other risks that could be costly and difficult to comply with or that could harm our business.

Our users can use the Facebook Platform to purchase virtual and digital goods from our Platform developers using our Payments infrastructure. Depending on how our Payments product evolves, we may be subject to a variety of laws and regulations in the United States, Europe, and elsewhere, including those governing money transmission, gift cards and other prepaid access instruments, electronic funds transfers, anti-money laundering, counter-terrorist financing, gambling, banking and lending, and import and export restrictions. In some jurisdictions, the application or interpretation of these laws and regulations is not clear. To increase flexibility in how our use of Payments may evolve and to mitigate regulatory uncertainty, we have applied for and received certain money transmitter licenses in the United States and expect to apply for certain regulatory licenses in Europe, which will generally require us to demonstrate compliance with many domestic and foreign laws in these areas. Our efforts to comply with these laws and regulations could be costly and result in diversion of management time and effort and may still not guarantee compliance. In the event that we are found to be in violation of any such legal or regulatory requirements, we may be subject to monetary fines or other penalties such as a cease and desist order, or we may be required to make product changes, any of which could have an adverse effect on our business and financial results.

In addition, we may be subject to a variety of additional risks as a result of Payments on the Facebook Platform, including:

• increased costs and diversion of management time and effort and other resources to deal with bad transactions or customer disputes;

• potential fraudulent or otherwise illegal activity by users, developers, employees, or third parties;

• restrictions on the investment of consumer funds used to transact Payments; and

• additional disclosure and reporting requirements.

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We plan to continue expanding our operations abroad where we have limited operating experience and may be subject to increased business and economic risks that could affect our financial results.

We plan to continue the international expansion of our business operations and the translation of our products. We currently make Facebook available in more than 70 different languages, and we have offices or data centers in more than 20 different countries. We may enter new international markets where we have limited or no experience in marketing, selling, and deploying our products. For example, we continue to evaluate entering China. However, this market has substantial legal and regulatory complexities that have prevented our entry into China to date. If we fail to deploy or manage our operations in international markets successfully, our business may suffer. In addition, we are subject to a variety of risks inherent in doing business internationally, including:

• political, social, or economic instability;

• risks related to the legal and regulatory environment in foreign jurisdictions, including with respect to privacy, and unexpected changes in laws, regulatory requirements, and enforcement;

• potential damage to our brand and reputation due to compliance with local laws, including potential censorship or requirements to provide user information to local authorities;

• fluctuations in currency exchange rates;

• higher levels of credit risk and payment fraud;

• enhanced difficulties of integrating any foreign acquisitions;

• burdens of complying with a variety of foreign laws;

• reduced protection for intellectual property rights in some countries;

• difficulties in staffing and managing global operations and the increased travel, infrastructure, and legal compliance costs associated with multiple international locations;

• compliance with the U.S. Foreign Corrupt Practices Act, the U.K. Bribery Act, and similar laws in other jurisdictions; and

• compliance with statutory equity requirements and management of tax consequences.

If we are unable to expand internationally and manage the complexity of our global operations successfully, our financial results could be adversely affected.

We have a substantial amount of indebtedness which could adversely affect our financial condition and our ability to obtain additional capital on reasonable terms when required.

As of December 31, 2012, we had $1.5 billion outstanding under our term loan facility. By drawing on our term loan facility, our interest expense and principal repayment requirements have increased significantly, which could have an adverse effect on our financial results.

In addition, we may require additional capital to support our business growth or to respond to business opportunities, challenges or unforeseen circumstances. We also expect to expend substantial amounts to fund tax withholding and remittance obligations related to the vesting and settlement of restricted stock units (RSUs) in the future if we continue to net settle such RSUs. Our ability to obtain additional capital, if and when required, will depend on our business plans, investor demand, our operating performance, the condition of the capital markets, and other factors, and our substantial indebtedness may limit our ability to borrow such additional funds. If we raise additional funds through the issuance of equity, equity-linked or debt securities, those securities may have rights, preferences, or privileges senior to the rights of our Class A common stock, and our existing stockholders may experience dilution.

If we default on our leasing and credit obligations, our operations may be interrupted and our business and financial results could be adversely affected.

We finance a significant portion of our expenditures through leasing arrangements, some of which are not required to be reflected on our balance sheet, and we may enter into additional similar arrangements in the future. In particular, we have used these types of arrangements to finance some of our equipment and data centers. In addition, we have a revolving credit facility that we may draw upon to finance our operations or other corporate purposes, and have a term loan facility, from which we drew $1.5 billion to fund a portion of our tax withholding and remittance obligations in connection with the settlement of RSUs. If we default on these leasing and credit obligations, our leasing partners and lenders may, among other things:

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• require repayment of any outstanding lease obligations or amounts drawn on our credit facilities;

• terminate our leasing arrangements and credit facilities;

• terminate our access to the leased data centers we utilize;

• stop delivery of ordered equipment;

• sell or require us to return our leased equipment; or

• require us to pay significant damages.

If some or all of these events were to occur, our operations may be interrupted and our ability to fund our operations or obligations, as well as our business, financial results, and financial condition, could be adversely affected.

We may have exposure to greater than anticipated tax liabilities.

Our income tax obligations are based in part on our corporate operating structure and intercompany arrangements, including the manner in which we develop, value, and use our intellectual property and the valuations of our intercompany transactions. The tax laws applicable to our business, including the laws of the United States and other jurisdictions, are subject to interpretation. The taxing authorities of the jurisdictions in which we operate may challenge our methodologies for valuing developed technology or intercompany arrangements, which could increase our worldwide effective tax rate and harm our financial position and results of operations. We are subject to regular review and audit by U.S. federal and state and foreign tax authorities. Tax authorities may disagree with certain positions we have taken and any adverse outcome of such a review or audit could have a negative effect on our financial position and results of operations. In addition, the determination of our worldwide provision for income taxes and other tax liabilities requires significant judgment by management, and there are many transactions where the ultimate tax determination is uncertain. Although we believe that our estimates are reasonable, the ultimate tax outcome may differ from the amounts recorded in our financial statements and may materially affect our financial results in the period or periods for which such determination is made.In addition, our future income taxes could be adversely affected by earnings being lower than anticipated in jurisdictions that have lower statutory tax rates and higher than anticipated in jurisdictions that have higher statutory tax rates, by changes in the valuation of our deferred tax assets and liabilities, or by changes in tax laws, regulations, or accounting principles. For example, we have previously incurred losses in certain international subsidiaries that resulted in an effective tax rate that is significantly higher than the statutory tax rate in the United States and this could continue to happen in the future.

Changes in tax laws or tax rulings could materially affect our financial position and results of operations.

Changes in tax laws or tax rulings could materially affect our financial position and results of operations. For example, the current U.S. administration and key members of Congress have made public statements indicating that international tax is a priority. Certain changes to U.S. tax laws, including limitations on the ability to defer U.S. taxation on earnings outside of the United States until those earnings are repatriated to the United States, could affect the tax treatment of our foreign earnings. In addition, other countries are considering changes to their tax regimes in an effort to raise additional tax proceeds from companies such as Facebook. Due to the large and expanding scale of our international business activities, any changes in the taxation of such activities may increase our worldwide effective tax rate and harm our financial position and results of operations.

Risks Related to Ownership of Our Class A Common Stock

The trading price of our Class A common stock has been and will likely continue to be volatile.

The trading price of our Class A common stock has been, and is likely to continue to be, volatile. Since shares of our Class A common stock were sold in our IPO in May 2012 at a price of $38.00 per share, our stock price has ranged from $17.55 to $45.00 through December 31, 2012. In addition to the factors discussed in this Annual Report on Form 10-K, the trading price of our Class A common stock may fluctuate significantly in response to numerous factors, many of which are beyond our control, including:

• actual or anticipated fluctuations in our revenue and other operating results;

• the financial projections we may provide to the public, any changes in these projections or our failure to meet these projections;

• actions of securities analysts who initiate or maintain coverage of us, changes in financial estimates by any securities analysts who follow our company, or our failure to meet these estimates or the expectations of investors;

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• additional shares of our common stock being sold into the market by us or our existing stockholders or the anticipation of such sales;

• investor sentiment with respect to our competitors, our business partners, and our industry in general;

• announcements by us or our competitors of significant products or features, technical innovations, acquisitions, strategic partnerships, joint ventures, or capital commitments;

• announcements by us or estimates by third parties of actual or anticipated changes in the size of our user base, the level of user engagement or the effectiveness of our ad products;

• changes in operating performance and stock market valuations of technology companies in our industry, including our Platform developers and competitors;

• price and volume fluctuations in the overall stock market, including as a result of trends in the economy as a whole;

• media coverage of our business and financial performance;

• lawsuits threatened or filed against us;

• developments in new legislation and pending lawsuits or regulatory actions, including interim or final rulings by judicial or regulatory bodies; and

• other events or factors, including those resulting from war or incidents of terrorism, or responses to these events.

In addition, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many technology companies. Stock prices of many technology companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those companies. Following our IPO, the events surrounding the offering became the subject of securities litigation. We may experience more such litigation following future periods of volatility. Any securities litigation could subject us to substantial costs, divert resources and the attention of management from our business, and adversely affect our business.

Substantially all of our total outstanding shares are available for sale into the public market and any substantial sales of our stock could cause the price of our Class A common stock to decline.

The price of our Class A common stock could decline if there are substantial sales of our common stock, particularly sales by our directors, executive officers, employees, and significant stockholders, or when there is a large number of shares of our common stock available for sale. As of December 31, 2012, there were 1,671,277,621 shares of our Class A common stock and 701,427,574 shares of our Class B common stock outstanding. Shares of our Class B common stock are convertible into an equivalent number of shares of our Class A common stock and generally convert into shares of our Class A common stock upon transfer.

As of December 31, 2012, substantially all of our outstanding shares are available for sale into the market, except for 47,315,862 shares held by Mail.ru Group Limited and DST Global Limited and their respective affiliates, which will be eligible for sale in the public market on May 18, 2013, and 426 million outstanding shares and 60 million shares issuable upon the exercise of an option held by Mark Zuckerberg. Mr. Zuckerberg has informed us that he has no intention to conduct any sale transactions in our securities until at least September 2013.

If securities or industry analysts publish inaccurate or unfavorable research about our business, our stock price could decline.

The trading market for our Class A common stock depends in part on the research and reports that securities or industry analysts publish about us or our business. If one or more of the analysts who cover us downgrade the rating of our Class A common stock or publish inaccurate or unfavorable research about our business, our Class A common stock price could decline.

We do not intend to pay dividends for the foreseeable future.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain any future earnings to finance the operation and expansion of our business, and we do not expect to declare or pay any dividends in the foreseeable future. As a result, you may only receive a return on your investment in our Class A common stock if the trading price of our Class A common stock increases. In addition, our credit facilities contain restrictions on our ability to pay dividends.

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If we are unable to implement and maintain effective internal control over financial reporting in the future, investors may lose confidence in the accuracy and completeness of our financial reports and the trading price of our Class A common stock may be negatively affected.

We are required to maintain internal controls over financial reporting and to report any material weaknesses in such internal controls. In addition, beginning with our 2013 Annual Report on Form 10-K to be filed in 2014, we will be required to furnish a report by management on the effectiveness of our internal control over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act. We are in the process of designing, implementing, and testing the internal control over financial reporting required to comply with this obligation, which process is time consuming, costly, and complicated. If we identify material weaknesses in our internal control over financial reporting, if we are unable to comply with the requirements of Section 404 in a timely manner or assert that our internal control over financial reporting is effective, or if our independent registered public accounting firm is unable to express an opinion as to the effectiveness of our internal control over financial reporting, investors may lose confidence in the accuracy and completeness of our financial reports and the trading price of our Class A common stock could be negatively affected, and we could become subject to investigations by the stock exchange on which our securities are listed, the SEC, or other regulatory authorities, which could require additional financial and management resources.

The requirements of being a public company may strain our resources and divert management's attention.

We are subject to the reporting requirements of the Securities Exchange Act of 1934, as amended , the Sarbanes-Oxley Act, the Dodd-Frank Act, the listing requirements of the NASDAQ Global Select Market, and other applicable securities rules and regulations. Compliance with these rules and regulations has increased and may/will continue to increase our legal and financial compliance costs, make some activities more difficult, time-consuming, or costly, and increase demand on our systems and resources. As a result, management's attention may be diverted from other business concerns, which could harm our business and operating results. Although we have hired additional employees to comply with these requirements, we may need to hire more employees in the future, which will increase our costs and expenses.

In addition, complying with public disclosure rules makes our business more visible, which we believe may result in threatened or actual litigation, including by competitors and other third parties. If such claims are successful, our business and operating results could be harmed, and even if the claims do not result in litigation or are resolved in our favor, these claims, and the time and resources necessary to resolve them, could divert the resources of our management and harm our business and operating results.

The dual class structure of our common stock and the voting agreements among certain stockholders have the effect of concentrating voting control with our CEO, and also with employees and directors and their affiliates; this will limit or preclude your ability to influence corporate matters.

Our Class B common stock has ten votes per share, and our Class A common stock has one vote per share. Stockholders who hold shares of Class B common stock, including our executive officers, employees, and directors and their affiliates, together hold a substantial majority of the voting power of our outstanding capital stock. Because of the ten-to-one voting ratio between our Class B and Class A common stock, the holders of our Class B common stock collectively control a majority of the combined voting power of our common stock and therefore are able to control all matters submitted to our stockholders for approval so long as the shares of Class B common stock represent at least 9.1% of all outstanding shares of our Class A and Class B common stock. This concentrated control will limit or preclude your ability to influence corporate matters for the foreseeable future.

Future transfers by holders of Class B common stock will generally result in those shares converting to Class A common stock, subject to limited exceptions, such as certain transfers effected for estate planning or charitable purposes. The conversion of Class B common stock to Class A common stock will have the effect, over time, of increasing the relative voting power of those holders of Class B common stock who retain their shares in the long term. If, for example, Mr. Zuckerberg retains a significant portion of his holdings of Class B common stock for an extended period of time, he could, in the future, continue to control a majority of the combined voting power of our Class A common stock and Class B common stock.

We have elected to take advantage of the "controlled company" exemption to the corporate governance rules for NASDAQ-listed companies, which could make our Class A common stock less attractive to some investors or otherwise harm our stock price.

Because we qualify as a "controlled company" under the corporate governance rules for NASDAQ-listed companies, we are not required to have a majority of our board of directors be independent, nor are we required to have a compensation committee or an independent nominating function. In light of our status as a controlled company, our board of directors determined not to have an independent nominating function and chose to have the full board of directors be directly responsible for nominating members of our board, and in the future we could elect not to have a majority of our board of directors be independent or not to have a compensation committee. Accordingly, should the interests of our controlling stockholder differ from those of other stockholders, the other stockholders may not have the same protections afforded to stockholders of companies that are subject to all of the corporate governance rules for NASDAQ-listed companies. Our status as a controlled company could make our Class A common stock less attractive to

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some investors or otherwise harm our stock price.

Delaware law and provisions in our restated certificate of incorporation and bylaws could make a merger, tender offer, or proxy contest difficult, thereby depressing the trading price of our Class A common stock.

Our status as a Delaware corporation and the anti-takeover provisions of the Delaware General Corporation Law may discourage, delay, or prevent a change in control by prohibiting us from engaging in a business combination with an interested stockholder for a period of three years after the person becomes an interested stockholder, even if a change of control would be beneficial to our existing stockholders. In addition, our restated certificate of incorporation and bylaws contain provisions that may make the acquisition of our company more difficult, including the following:

• until the first date on which the outstanding shares of our Class B common stock represent less than 35% of the combined voting power of our common stock, any transaction that would result in a change in control of our company requires the approval of a majority of our outstanding Class B common stock voting as a separate class;

• we have a dual class common stock structure, which provides Mr. Zuckerberg with the ability to control the outcome of matters requiring stockholder approval, even if he owns significantly less than a majority of the shares of our outstanding Class A and Class B common stock;

• when the outstanding shares of our Class B common stock represent less than a majority of the combined voting power of common stock, certain amendments to our restated certificate of incorporation or bylaws will require the approval of two-thirds of the combined vote of our then-outstanding shares of Class A and Class B common stock;

• when the outstanding shares of our Class B common stock represent less than a majority of the combined voting power of our common stock, vacancies on our board of directors will be able to be filled only by our board of directors and not by stockholders;

• when the outstanding shares of our Class B common stock represent less than a majority of the combined voting power of our common stock, our board of directors will be classified into three classes of directors with staggered three-year terms and directors will only be able to be removed from office for cause;

• when the outstanding shares of our Class B common stock represent less than a majority of the combined voting power of our common stock, our stockholders will only be able to take action at a meeting of stockholders and not by written consent;

• only our chairman, our chief executive officer, our president, or a majority of our board of directors are authorized to call a special meeting of stockholders;

• advance notice procedures apply for stockholders to nominate candidates for election as directors or to bring matters before an annual meeting of stockholders;

• our restated certificate of incorporation authorizes undesignated preferred stock, the terms of which may be established, and shares of which may be issued, without stockholder approval; and

• certain litigation against us can only be brought in Delaware.

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Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

As of December 31, 2012, we leased office and data center facilities around the world totaling approximately 2.2 million square feet, including one million square feet for our corporate headquarters in Menlo Park, California. We have data centers in the United States, including data center facilities that we own in North Carolina and Oregon and leased data center facilities in California and Virginia. We believe that our facilities are adequate for our current needs. To support our continuing growth, we are currently constructing a new data center in Luleå, Sweden.

Item 3.Legal Proceedings

Paul D. Ceglia filed suit against us and Mark Zuckerberg on or about June 30, 2010, in the Supreme Court of the State of New York for the County of Allegheny, claiming substantial ownership of our company based on a purported contract between Mr. Ceglia and Mr. Zuckerberg allegedly entered into in April 2003. We removed the case to the U.S. District Court for the Western District of New York, where the case is now pending. In his first amended complaint, filed on April 11, 2011, Mr. Ceglia revised his claims to include an alleged partnership with Mr. Zuckerberg, he revised his claims for relief to seek a substantial share of Mr. Zuckerberg's ownership in us, and he included quotations from supposed emails that he claims to have exchanged with Mr. Zuckerberg in 2003 and 2004. On June 2, 2011, we filed a motion for expedited discovery based on evidence we submitted to the court showing that the alleged contract and emails upon which Mr. Ceglia bases his complaint are fraudulent. On July 1, 2011, the court granted our motion and ordered Mr. Ceglia to produce, among other things, all hard copy and electronic versions of the purported contract and emails. On January 10, 2012, the court granted our request for sanctions against Mr. Ceglia for his delay in compliance with that order. On March 26, 2012, we filed a motion to dismiss Mr. Ceglia's complaint and a motion for judgment on the pleadings. We continue to believe that Mr. Ceglia is attempting to perpetrate a fraud on the court and we intend to continue to defend the case vigorously.

Beginning on May 22, 2012, multiple putative class actions, derivative actions, and individual actions were filed in state and federal courts in the United States and in other jurisdictions against us, our directors, and/or certain of our officers alleging violation of securities laws or breach of fiduciary duties in connection with our IPO and seeking unspecified damages. We believe these lawsuits are without merit, and we intend to continue to vigorously defend them. On October 4, 2012, on our motion, the vast majority of the cases in the United States, along with multiple cases filed against The NASDAQ OMX Group, Inc. and The Nasdaq Stock Market LLC (collectively referred to herein as NASDAQ) alleging technical and other trading-related errors by NASDAQ in connection with our IPO, were ordered centralized for coordinated or consolidated pre-trial proceedings in the United States District Court for the Southern District of New York. In addition, the events surrounding our IPO have become the subject of various government inquiries, and we are cooperating with those inquiries. Any such inquiries could subject us to substantial costs, divert resources and the attention of management from our business, and adversely affect our business.

We are also party to various legal proceedings and claims which arise in the ordinary course of business. Among these pending legal matters, two cases are currently scheduled for trial in the near future:  Summit 6 LLC v. Research in Motion Corporation et al., Case No. 3:11cv00367, is scheduled to begin trial as early as February 19, 2013, in the U.S. District Court for the Northern District of Texas, and Timelines, Inc. v. Facebook, Inc., Case No. 1:2011cv06867, is scheduled to begin trial on April 22, 2013, in the U.S. District Court for the Northern District of Illinois.  In the Summit 6 case, the plaintiffs allege that Facebook infringes certain patents held by the plaintiffs.  In the Timelines case, the plaintiffs allege that Facebook infringes a trademark held by the plaintiffs. In both cases, the plaintiffs are seeking significant monetary damages and equitable relief.

We believe the claims made by the Summit 6 plaintiffs and the Timelines plaintiffs are without merit, and we intend to continue to defend ourselves vigorously in both cases.  Although the outcome of litigation is inherently uncertain, we do not believe the possibility of loss in either of these cases is probable.  We are unable to estimate a range of loss, if any, that could result were there to be an adverse final decision, and we have not accrued a liability for either matter.  If an unfavorable outcome were to occur in the Summit 6 case and/or the Timelines case, it is possible that the impact could be material to our results of operations in the period(s) in which any such outcome becomes probable and estimable.

In addition, we are also currently parties to multiple other lawsuits related to our products, including other patent infringement lawsuits as well as class action lawsuits brought by users and marketers, and we may in the future be subject to additional lawsuits and disputes. We are also involved in other claims, government investigations, and proceedings arising from the ordinary course of our business. Although the results of these other lawsuits, claims, government investigations, and proceedings in which we are involved cannot be predicted with certainty, we do not believe that the final outcome of these other matters will have a material adverse effect on our business, financial condition, or results of operations.

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Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Market Information for Common Stock

Our Class A common stock has been listed on the NASDAQ Global Select Market under the symbol "FB" since May 18, 2012. Prior to that time, there was no public market for our stock. The following table sets forth for the indicated periods the high and low intra-day sales prices per share for our Class A common stock on the NASDAQ Global Select Market.

	High		Low
Second Quarter 2012 (from May 18, 2012)	$	45.00	$	25.52
Third Quarter 2012	32.88		17.55
Fourth Quarter 2012	28.88		18.80

Our Class B common stock is not listed nor traded on any stock exchange.

Holders of Record

As of December 31, 2012, there were 4,681 stockholders of record of our Class A common stock, and the closing price of our Class A common stock was $26.62 per share as reported on the NASDAQ Global Select Market. Because many of our shares of Class A common stock are held by brokers and other institutions on behalf of stockholders, we are unable to estimate the total number of stockholders represented by these record holders. As of December 31, 2012, there were 324 stockholders of record of our Class B common stock.

Dividend Policy

We have never declared or paid any cash dividend on our common stock. We intend to retain any future earnings and do not expect to pay dividends in the foreseeable future. In addition, our credit facilities contain restrictions on our ability to pay dividends.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

The table below provides information with respect to repurchases of unvested shares of our Class A common stock for the three months ended December 31, 2012. 

Period	Total Number of Shares Purchased (1)	Weighted Average Price Paid per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
October 1 – October 31, 2012	___	___	—	—
November 1 – November 30, 2012	4,848	$0.322727	—	—
December 1 – December 31, 2012	—	—	—	—

1) Under certain acquisition agreements, some shares issued in connection with those acquisitions are subject to vesting. Unvested shares are subject to a right of repurchase by us in the event the recipient of such unvested acquisition shares is no longer employed by us prior to a vesting date. All shares in the above table were shares repurchased as a result of us exercising this right and not pursuant to a publicly announced plan or program.

Recent Sale of Unregistered Securities and Use of Proceeds

Recent Sale of Unregistered Securities

On October 1, 2012, we issued 94,547 additional shares of our Class A common stock as consideration to 9 individuals and 5 entities in connection with an acquisition of all the outstanding shares of a company in the third quarter of 2012.

The sales of the above securities were exempt from registration under the Securities Act of 1933, as amended (Securities Act), in reliance upon Section 4(2) of the Securities Act as transactions by an issuer not involving any public offering. The recipients of the securities in each of these transactions represented their intentions to acquire the securities for investment only and not with a view to or for sale in connection with any distribution thereof, and appropriate legends were placed upon the book-entry entitlements issued in this transaction.

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Use of Proceeds

On May 17, 2012, our registration statement on Form S-1 (File No. 333-179287) was declared effective by the Securities and Exchange Commission (SEC) for our initial public offering pursuant to which we sold an aggregate of 180,000,000 shares of our Class A common stock at a price to the public of $38.00 per share. There has been no material change in the planned use of proceeds from our initial public offering as described in our final prospectus filed with the SEC on May 18, 2012 pursuant to Rule 424(b).

Stock Performance Graph

This performance graph shall not be deemed "soliciting material" or to be "filed" with the SEC for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (Exchange Act), or otherwise subject to the liabilities under that Section, and shall not be deemed to be incorporated by reference into any filing of Facebook, Inc. under the Securities Act of 1933, as amended, or the Exchange Act.

The following graph shows a comparison from May 18, 2012 (the date our Class A common stock commenced trading on the NASDAQ Global Select Market) through December 31, 2012 of the cumulative total return for our Class A common stock, the Standard & Poor's 500 Stock Index (S&P 500 Index) and the Nasdaq Composite Index (NASDAQ Composite). The graph assumes that $100 was invested at the market close on May 18, 2012 in the Class A common stock of Facebook, Inc., the S&P 500 Index and the NASDAQ Composite and data for the S&P 500 Index and the NASDAQ Composite assumes reinvestments of dividends. The stock price performance of the following graph is not necessarily indicative of future stock price performance.

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Item 6. Selected Financial Data.

You should read the following selected consolidated financial data in conjunction with Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operation," and our consolidated financial statements and the related notes included in Part II, Item 8, "Financial Statements and Supplementary Data" of this Annual Report on Form 10-K.

The consolidated statements of operations data for each of the years ended December 31, 2012, 2011, and 2010 and the consolidated balance sheets data as of December 31, 2012 and 2011 are derived from our audited consolidated financial statements included in Part II, Item 8, "Financial Statements and Supplementary Data" of this Annual Report on Form 10-K. The consolidated statements of operations data for the years ended December 31, 2009 and 2008 and the consolidated balance sheets data as of December 31, 2010, 2009, and 2008 are derived from our audited consolidated financial statements that are not included in this Annual Report on Form 10-K. Our historical results are not necessarily indicative of our results in any future period.

	Year Ended December 31,
	2012		2011		2010		2009		2008
	(in millions, except per share data)
Consolidated Statements of Operations Data:
Revenue	$	5,089	$	3,711	$	1,974	$	777	$	272
Total costs and expenses(1)	4,551		1,955		942		515		327
Income (loss) from operations	538		1,756		1,032		262		(55		)
Income (loss) before provision for income taxes	494		1,695		1,008		254		(56		)
Net income (loss)	53		1,000		606		229		(56		)
Net income (loss) attributable to Class A and Class B common stockholders	32		668		372		122		(56		)
Earnings (loss) per share attributable to Class A and Class B common stockholders (2):
Basic	$	0.02	$	0.52	$	0.34	$	0.12	$	(0.06	)
Diluted	$	0.01	$	0.46	$	0.28	$	0.10	$	(0.06	)

(1) Total costs and expenses include $1.57 billion, $217 million, $20 million, $27 million and $30 million of share-based compensation for the years ended December 31, 2012, 2011, 2010, 2009 and 2008, respectively.

(2) See Note 3 of the notes to our consolidated financial statements for a description of our computation of basic and diluted net earnings (loss) per share attributable to Class A and Class B common stockholders. 

	As of December 31,
	2012		2011		2010		2009		2008
	(in millions)
Consolidated Balance Sheets Data:
Cash, cash equivalents, and marketable securities	$	9,626	$	3,908	$	1,785	$	633	$	297
Working capital	10,215		3,705		1,857		703		279
Property and equipment, net	2,391		1,475		574		148		131
Total assets	15,103		6,331		2,990		1,109		505
Capital lease obligations	856		677		223		95		56
Long-term debt	1,500		—		250		—		—
Total liabilities	3,348		1,432		828		241		170
Additional paid-in capital	10,094		2,684		947		253		147
Total stockholders' equity	11,755		4,899		2,162		868		335

Free Cash Flow

In addition to other financial measures presented in accordance with U.S. generally accepted accounting principles (GAAP), we monitor free cash flow (FCF) as a non-GAAP measure to manage our business, make planning decisions, evaluate our performance, and allocate resources. We define FCF as net cash provided by operating activities reduced by purchases of property and equipment and property and equipment acquired under capital leases.

We believe that FCF is one of the key financial indicators of our business performance over the long term and provides useful

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information regarding how cash provided by operating activities compares to the property and equipment investments required to maintain and grow our business. We have chosen to subtract both purchases of property and equipment and property and equipment acquired under capital leases in our calculation of FCF because we believe that these two items collectively represent the amount of property and equipment we need to procure to support our business, regardless of whether we finance such property or equipment with a capital lease. The market for financing servers and other technical equipment is dynamic and we expect our use of capital leases could vary significantly from year to year.

We have chosen our definition for FCF because we believe that this methodology can provide useful supplemental information to help investors better understand underlying trends in our business. We use FCF in discussions with our senior management and board of directors.

FCF has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of other GAAP financial measures, such as net cash provided by operating activities. Some of the limitations of FCF are:

• FCF does not reflect our future contractual commitments; and

• other companies in our industry present similarly titled measures differently than we do, limiting their usefulness as comparative measures.

Management compensates for the inherent limitations associated with using the FCF measure through disclosure of such limitations, presentation of our financial statements in accordance with GAAP, and reconciliation of FCF to the most directly comparable GAAP measure, net cash provided by operating activities, as presented below.

The following is a reconciliation of FCF to the most comparable GAAP measure, net cash provided by operating activities:

	Year Ended December 31,
	2012			2011			2010			2009			2008
	(in millions)
Net cash provided by operating activities (1)	$	1,612		$	1,549		$	698		$	155		$	8
Purchases of property and equipment	(1,235		)	(606		)	(293		)	(33		)	(70		)
Property and equipment acquired under capital leases	(340		)	(473		)	(217		)	(56		)	(26		)
Free cash flow	$	37		$	470		$	188		$	66		$	(88	)

1) For the year ended December 31, 2012, net cash provided by operating activities was reduced by $451 million of income tax refundable from income tax loss carrybacks due to the recognition of tax benefits related to share-based compensation from RSUs granted prior to January 1, 2011. We expect to receive this refund in the first six months of 2013, at which time, our FCF will increase by this amount.

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Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion of our financial condition and results of operations in conjunction with our consolidated financial statements and the related notes included in Part II, Item 8, "Financial Statements and Supplementary Data" of this Annual Report on Form 10-K. In addition to our historical consolidated financial information, the following discussion contains forward-looking statements that reflect our plans, estimates, and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Annual Report on Form 10-K, particularly in Part I, Item 1A, "Risk Factors." For a discussion of limitations in the measurement of certain of our user metrics, see the section entitled "Limitations of Key Metrics."

Overview

Our mission is to make the world more open and connected. Facebook enables you to express yourself and connect with the world around you instantly and freely.

We build products that support our mission by creating utility for users, developers, and marketers:

Users. We enable people who use Facebook to stay connected with their friends and family, to discover what is going on in the world around them, and to share and express what matters to them to the people they care about.

Developers. We enable developers to use the Facebook Platform to build applications (apps) and websites that integrate with Facebook to reach our global network of users and to build products that are more personalized and social.

Marketers. We enable marketers to engage with more than one billion monthly active users (MAUs) on Facebook or subsets of our users based on information they have chosen to share with us such as their age, location, gender, or interests. We offer marketers a unique combination of reach, relevance, social context, and engagement to enhance the value of their ads.

We generate substantially all of our revenue from advertising and from fees associated with our Payments infrastructure that enables users to purchase virtual and digital goods from our Platform developers. For the year ended December 31, 2012, we recorded revenue of $5.09 billion, income from operations of $538 million and net income of $53 million. Total costs and expenses increased 133% compared to revenue growth of 37% due to significant increases in share-based compensation and related payroll tax expenses for restricted stock units (RSUs) and increases in headcount for the year ended December 31, 2012. During fiscal 2012, we recognized $1.72 billion of share-based compensation and related payroll tax expenses. Of these amounts, $1.13 billion was due to the recognition of share-based compensation and related payroll tax expenses related to RSUs granted prior to January 1, 2011 (Pre-2011 RSUs) triggered by the completion of our initial public offering (IPO) in May 2012. Our effective tax rate for the year ended December 31, 2012 has exceeded the U.S. statutory rate primarily due to the impact of non-deductible share-based compensation and losses arising outside the United States in jurisdictions where we do not receive a tax benefit.

Trends in Our User Metrics

The numbers of MAUs, DAUs, and mobile MAUs discussed below, as well as average revenue per user (ARPU), do not include Instagram users unless such users would otherwise qualify as MAUs, DAUs and/or mobile MAUs based on activity that is shared back to Facebook.

• Monthly Active Users (MAUs). We define a monthly active user as a registered Facebook user who logged in and visited Facebook through our website or a mobile device, or took an action to share content or activity with his or her Facebook friends or connections via a third-party website that is integrated with Facebook, in the last 30 days as of the date of measurement. MAUs are a measure of the size of our global active user community, which has grown substantially in the past several years.

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Note: For purposes of reporting MAUs, DAUs, and ARPU by geographic region, Europe includes all users in Russia and Turkey, Asia includes all users in Australia and New Zealand, and Rest of World includes Africa, Latin America, and the Middle East. In June 2012, we discovered an error in the algorithm we used to estimate the geographic location of our users that affected our attribution of certain user locations for the first quarter of 2012. While this issue did not affect our overall worldwide MAU number, it did affect our attribution of users to different geographic regions. The first quarter of 2012 user metrics as pictured in the charts above reflect the reclassification to more correctly attribute users by geographic region.

As of December 31, 2012, we had 1.06 billion MAUs, an increase of 25% from December 31, 2011. Users in Brazil, India and Indonesia represented key sources of growth in fiscal 2012 relative to the prior year. We had 67 million MAUs in Brazil as of December 31, 2012, an increase of 81% compared to the same period in 2011; we had 71 million MAUs in India as of December 31, 2012, an increase of 54% compared to the same period in 2011; and we had 60 million MAUs in Indonesia as of December 31, 2012, an increase of 25% compared to the same period in 2011. Additionally, we had 174 million MAUs in the United States as of December 31, 2012, an increase of 8% compared to the same period in 2011.

• Daily Active Users (DAUs). We define a daily active user as a registered Facebook user who logged in and visited Facebook through our website or a mobile device, or took an action to share content or activity with his or her Facebook friends or connections via a third-party website that is integrated with Facebook, on a given day. We view DAUs, and DAUs as a percentage of MAUs, as measures of user engagement.

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Note: For non-worldwide DAU user numbers presented for the periods marked March 31, 2012 and June 30, 2012, the figures represent an average of the first 25 days of the former period and the last 27 days of the latter period in order to avoid using data subject to the algorithm error described in the MAU section above. These average numbers do not meaningfully differ from the average numbers when calculated over a full month.

Worldwide DAUs increased 28% to 618 million on average during December 2012 from 483 million during December 2011. We experienced growth in DAUs across major markets including Brazil, India and Japan. Overall growth in DAUs was driven largely by increased mobile usage of Facebook. Relative to September 30, 2012, DAUs increased from 584 million to 618 million, due to an increase in mobile users. During the fourth quarter of 2012, the number of DAUs using personal computers declined modestly compared to the third quarter of 2012, including declines in key markets such as the United States, while mobile DAUs continued to increase.

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• Mobile MAUs. We define a mobile MAU as a user who accessed Facebook via a mobile app or via mobile-optimized versions of our website such as m.facebook.com, whether on a mobile phone or tablet such as the iPad, during the period of measurement.

Worldwide mobile MAUs increased 57% to 680 million as of December 31, 2012 from 432 million as of December 31, 2011. In all regions, an increasing number of our MAUs are accessing Facebook through mobile devices, with users in the United States, India and Brazil representing key sources of mobile growth over the fourth quarter of 2012 as compared to the third quarter of 2012. Approximately 157 million mobile MAUs accessed Facebook solely through mobile apps or our mobile website during the month ended December 31, 2012, increasing 25% from 126 million during the month ended September 30, 2012. The remaining 523 million mobile MAUs accessed Facebook from both personal computers and mobile devices during that month. While most of our mobile users also access Facebook through personal computers, we anticipate that the rate of growth in mobile usage will exceed the growth in usage through personal computers for the foreseeable future and that the usage through personal computers may be flat or continue to decline in certain markets, including key developed markets such as the United States, in part due to our focus on developing mobile products to encourage mobile usage of Facebook.

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Trends in Our Monetization by User Geography

We calculate our revenue by user geography based on our estimate of the geography in which ad impressions are delivered or virtual goods are purchased. We define ARPU as our total revenue in a given geography during a given quarter, divided by the average of the number of MAUs in the geography at the beginning and end of the quarter. Annual ARPU is the sum of respective quarterly ARPU amounts in that year. Our revenue and ARPU in markets such as United States & Canada and Europe are relatively higher due to the size and maturity of those advertising markets as well as our greater sales presence and the number of payment methods that we make available to marketers and users.     

Note: Our revenue by user geography in the charts above is geographically apportioned based on our estimation of the geographic location of our users when they perform a revenue-generating activity. This allocation differs from our revenue by geography disclosure in our consolidated financial statements where revenue is geographically apportioned based on the location of the advertiser or developer. In June 2012, we discovered an error in the algorithm we used to estimate the geographic location of our users that affected our attribution of certain user locations for the first quarter of 2012. The first quarter of 2012 ARPU amount for the United States & Canada region reflects an adjustment based on the reclassification to more correctly attribute users by geographic region. The amounts above for the fourth quarter of 2012 include a one-time increase in Payments revenue as described in Results of Operations.

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For 2012, worldwide ARPU was $5.32, an increase of 6% from 2011. ARPU increased in 2012 by approximately 20% in the United States & Canada and Rest of World, by approximately 15% in Asia and 8% in Europe compared to 2011. During the fourth quarter of 2012, worldwide ARPU was $1.54, an increase of 12% from the fourth quarter of 2011. Over this period, ARPU increased by approximately 37% in Rest of World, by over 20% in United States & Canada and Asia, and by approximately 7% in Europe. User growth was more rapid in geographies with relatively lower ARPU, such as Asia and Rest of World. We expect that user growth in the future will continue to be higher in those regions where ARPU is relatively lower, such as Asia and Rest of World, such that worldwide ARPU may continue to increase at a slower rate relative to ARPU in any geographic region, or potentially decrease even if ARPU increases in each geographic region. We also expect worldwide ARPU will decline in the first quarter of 2013 driven by seasonality, which is consistent with historical trends.

Factors Affecting Our Performance

Number of MAUs and DAUs. Trends in our MAUs and DAUs affect our revenue and financial results by influencing the number of ads we are able to show, the volume of Payments transactions, as well as our expenses and capital expenditures. In 2012, MAUs increased by 25% and DAUs increased by 28%. We expect our growth rates for MAUs and DAUs to decline as the size of our active user base increases and as we achieve higher market penetration rates. Additionally, as we grow our business and expand internationally, we expect to face challenges entering new markets such as China, where access to Facebook is restricted in whole or in part. As user growth rates slow, we expect the rate of growth in revenue will likely decline over time, which will affect our income from operations and net income.

User Geography. The geography of our users affects our revenue and financial results because we currently monetize users in different geographies at different average rates. For example, ARPU for an average user in United States & Canada is more than five times higher than for an average user in Asia. User geography also has some impact on our costs, though in general new users in Asia and Rest of World do not require material incremental infrastructure investments because we are able to utilize existing infrastructure such as our data centers in the United States to make our products available to these users. In addition, user growth by geography does not necessarily affect our overall headcount requirements or headcount-related expenses since we are generally able to support users in all geographies from our existing facilities. In 2012, we grew users relatively faster in Asia and Rest of World where on average users generate less revenue as compared with users in the United States or Europe. In the future, we expect to continue to grow more rapidly in Asia and Rest of World markets where our current penetration rates are lower. We plan to continue to invest in user growth across the world, including in geographies where current per user monetization is relatively lower.

User Engagement. Changes in user engagement as measured by metrics such as frequency of visitation will also affect our revenue and financial performance. Growth in user engagement should generally increase the opportunities for us to display advertising and to deliver relevant commercial content to users. Growth in user engagement also generally results in increases in our expenses and capital expenditures required to support user activity. User engagement as measured by DAUs as a percentage of MAUs increased from 57% at the end of 2011 to 59% at the end of 2012. Our product development investments are focused on increasing user engagement over time.

Facebook Usage on Mobile Devices. Increasing Facebook use on mobile devices may affect our revenue and financial results as we currently show fewer ads on average to mobile users compared to users on personal computers. The lower volume of ads per mobile user is partially offset by the higher price per ad for mobile, and we are investing to try to make our mobile ads more valuable over time. In 2012, we began showing ads in mobile users' News Feeds, and for the fourth quarter of 2012 and for the year ended December 31, 2012, we estimate that approximately 23% and 11% of our ads revenue came from mobile products, respectively. We expect mobile usage to increase at a faster rate than usage through personal computers for the foreseeable future, particularly in developed markets, and our success in ramping up mobile monetization will likely have a material impact on our financial performance.

Value of Our Advertising Products. We believe that increasing the value of our advertising products and the consequent return on investment to marketers from working with Facebook will increase marketer demand and thereby increase the amount marketers spend with us. We aim to increase the value of our advertising products through such means as increasing the size and engagement of our user base, improving our ability to select relevant advertising content for each user, developing new ads formats and products, and improving the measurement tools available to marketers to optimize their campaigns. For example, in 2012, we launched advertising in News Feed and Custom Audiences in order to enable marketers to more effectively reach their target customers.

Management of Ad Inventory. Our revenue trends are also affected by ad inventory management changes affecting the number, size, or prominence of ads we display. For example, in 2012 we began showing ads in News Feed. These News Feed ads are displayed more prominently and we receive a higher price per ad compared to ads displayed on the right hand column of our web page.

Product Innovation. We make ongoing product changes intended to enhance the user experience and increase user engagement. For example, in 2012, we launched new versions of our iPhone app that are faster and more reliable than the prior versions of our app. The new versions of the apps significantly increased News Feed loads and user feedback shared. Our new products often also increase costs if they require additional compute power and infrastructure.

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Investment in Infrastructure. Our investments in the scope, reliability, redundancy, and efficiency of our infrastructure affects our expenses and capital expenditures. In 2012, we continued to make significant investments in our technical infrastructure to ensure that our growing user base can access Facebook rapidly and reliably, by expanding the capacity of our data centers in Prineville, Oregon and Forest City, North Carolina and by initiating construction of a new data center project in Lulea, Sweden. We also invested in hardware and software efficiency projects to improve the performance of our infrastructure.

Investment in Talent. As of December 31, 2012, we had 4,619 employees, an increase of 44% from the end of 2011. Our employee headcount has increased significantly and we expect headcount growth to continue in 2013 as we ramp up our investment in technical staff, sales and marketing, and general and administrative personnel. We have also made and intend to make acquisitions with the primary objective of adding software engineers, product designers, and other personnel with certain technology expertise.

Business Development and Acquisitions. As part of our business strategy, we periodically make acquisitions to add specialized employees, complementary companies, products, technologies, or other assets. For example, in 2012, we acquired Instagram, Inc. and certain AOL patent assets from Microsoft Corporation. Our acquisitions will affect our future financial results due to factors such as the amortization of acquired intangible assets and may also result in potential charges such as restructuring costs or impairment expense.

Geographic Earnings Mix. In 2012, our tax rate was 89%, up from 41% in 2011, primarily due to significant amounts of share-based compensation expense being allocated to our international subsidiaries in low tax jurisdictions, leading to non-deductible losses in those subsidiaries. Our future tax rate and financial results will be affected by the relative profitability of our corporate entities in higher versus lower tax jurisdictions.

Seasonality. Advertising spending is traditionally seasonally strong in the fourth quarter of each year. We believe that this seasonality in advertising spending affects our quarterly results, which generally reflect significant growth in advertising revenue between the third and fourth quarters and a decline in advertising spending between the fourth and subsequent first quarters. For instance, our advertising revenue increased 46%, 18%, and 22% between the third and fourth quarters of 2010, 2011, and 2012, respectively, while advertising revenue for the first quarter of 2011 and 2012 declined 3% and 8% compared to the fourth quarters of 2010 and 2011, respectively.

Share-based Compensation Expense. During the year ended December 31, 2012, we recognized $1.57 billion of share-based compensation expense. Of these amounts, $1.04 billion was due to the recognition of share-based compensation related to Pre-2011 RSUs triggered by the completion of our IPO in May 2012. As of December 31, 2012, there was $2.21 billion of unrecognized share-based compensation expense, of which $1.96 billion is related to RSUs and $244 million is related to restricted shares and stock options. This unrecognized share-based compensation expense is expected to be recognized over a weighted-average period of approximately three years.

Critical Accounting Policies and Estimates

Our consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (GAAP). The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures. We evaluate our estimates and assumptions on an ongoing basis. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Our actual results could differ from these estimates.

An accounting policy is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, if different estimates reasonably could have been used, or if changes in the estimate that are reasonably possible could materially impact the financial statements. We believe that the assumptions and estimates associated with revenue recognition for payments and other fees, income taxes, share-based compensation, loss contingencies, and business combinations and valuation of goodwill and other acquired intangible assets have the greatest potential impact on our consolidated financial statements. Therefore, we consider these to be our critical accounting policies and estimates. For further information on all of our significant accounting policies, see Note 1 of our accompanying Notes to Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" of this Annual Report on Form 10-K.

Revenue Recognition for Payments and Other Fees

We enable Payments from our users to our Platform developers. Our users can make payments on the Facebook Platform by using credit cards or other payment methods available on our website. The primary process for these transactions is through the purchase of our virtual currency. Our users then use this virtual currency to purchase virtual and digital goods in games and apps from developers on the Facebook Platform. Upon the initial sale of the virtual currency, we record consideration received from a user as a deposit.

When a user engages in a payment transaction utilizing the virtual currency for the purchase of a virtual or digital good from a

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Platform developer, we reduce the virtual currency balance of the user by the price of the purchase, which is a price that is solely determined by the Platform developer. We remit to the Platform developer an amount that is based on the total amount of virtual currency redeemed less the processing fee that we charge the Platform developer for the service performed. Our revenue is the net amount of the transaction representing our processing fee for the transaction. We record revenue on a net basis as we do not consider ourselves to be the principal in the sale of the virtual or digital good to the user. Under GAAP guidance related to reporting revenue gross as a principal versus net as an agent, the indicators used to determine whether an entity is a principal or an agent to a transaction are subject to judgment. We consider ourselves the agent to these transactions when we apply the indicators to our facts. Should material subsequent changes in the substance or nature of the transactions with Platform developers result in us being considered the principal in such sales, we would reflect the virtual and digital goods sale as revenue and the amounts paid to the Platform developers as an associated cost.

Income Taxes

We are subject to income taxes in the United States and numerous foreign jurisdictions. Significant judgment is required in determining our provision for income taxes and income tax assets and liabilities, including evaluating uncertainties in the application of accounting principles and complex tax laws.

We record a provision for income taxes for the anticipated tax consequences of the reported results of operations using the asset and liability method. Under this method, we recognize deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, as well as for operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using the tax rates that are expected to apply to taxable income for the years in which those tax assets and liabilities are expected to be realized or settled. We record a valuation allowance to reduce our deferred tax assets to the net amount that we believe is more likely than not to be realized.

We recognize tax benefits from uncertain tax positions only if we believe that it is more likely than not that the tax position will be sustained on examination by the taxing authorities based on the technical merits of the position. Although we believe that we have adequately reserved for our uncertain tax positions, we can provide no assurance that the final tax outcome of these matters will not be materially different. We make adjustments to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will affect the provision for income taxes in the period in which such determination is made and could have a material impact on our financial condition and operating results. The provision for income taxes includes the effects of any reserves that we believe are appropriate, as well as the related net interest and penalties.

Share-based Compensation

Prior to January 1, 2011 we granted Pre-2011 RSUs to our employees and members of our board of directors that vested upon the satisfaction of both a service-based condition, generally over four years, and a liquidity condition. The liquidity condition was satisfied in connection with our IPO in May 2012. Because the liquidity condition was not satisfied until our IPO, in prior periods we had not recorded any expense relating to the granting of the Pre-2011 RSUs. In the second quarter of 2012, we recognized $986 million of stock-based compensation expense associated with Pre-2011 RSUs that vested in connection with our IPO. For the Pre-2011 RSUs, we recognize share-based compensation expense using the accelerated attribution method, net of estimated forfeitures, in which compensation cost for each vesting tranche in an award is recognized ratably from the service inception date to the vesting date for that tranche.

RSUs granted on or after January 1, 2011 (Post-2011 RSUs) are not subject to a liquidity condition in order to vest, and compensation expense related to these grants is based on the grant date fair value of the RSUs and is recognized on a straight-line basis over the applicable service period. The majority of Post-2011 RSUs are earned over a service period of four to five years. For Post-2011 RSUs, which are only subject to a service condition, we recognize share-based compensation expense on a ratable basis over the requisite service period for the entire award.

We account for share-based employee compensation plans under the fair value recognition and measurement provisions in accordance with applicable accounting standards, which require all share-based payments to employees, including grants of stock options and RSUs, to be measured based on the grant-date fair value of the awards.

Share-based compensation expense is recorded net of estimated forfeitures in our consolidated statements of income and as such is recorded for only those share-based awards that we expect to vest. We estimate the forfeiture rate based on historical forfeitures of equity awards and adjust the rate to reflect changes in facts and circumstances, if any. We will revise our estimated forfeiture rate if actual forfeitures differ from our initial estimates.

We have historically issued unvested restricted shares to employee stockholders of certain acquired companies. As these awards are generally subject to continued post-acquisition employment, we have accounted for them as post-acquisition share-based compensation expense. We recognize compensation expense equal to the grant date fair value of the common stock on a straight-line basis over the employee's required service period.

We capitalize share-based employee compensation expense when appropriate. We did not capitalize any share-based compensation

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expense in the three years ended December 31, 2012.

Loss Contingencies

We are involved in various lawsuits, claims, investigations and proceedings that arise in the ordinary course of business. Certain of these matters include speculative claims for substantial or indeterminate amounts of damages. We record a liability when we believe that it is both probable that a loss has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. We review these provisions at least quarterly and adjust these provisions accordingly to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information.

In the opinion of management, there was not at least a reasonable possibility we may have incurred a material loss, or a material loss in excess of a recorded accrual, with respect to loss contingencies for legal and other contingencies as of December 31, 2012. However, the outcome of litigation is inherently uncertain. Therefore, although management considers the likelihood of such an outcome to be remote, if one or more of these legal matters were resolved against us in the same reporting period for amounts in excess of management's expectations, our consolidated financial statements of a particular reporting period could be materially adversely affected.

Business Combinations and Valuation of Goodwill and Other Acquired Intangible Assets

We allocate the fair value of purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets. During the measurement period, which is one year from the acquisition date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings.

We review goodwill for impairment at least annually or more frequently if events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. We have elected to first assess the qualitative factors to determine whether it is more likely than not that the fair value of our single reporting operating unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment under the new authoritative guidance issued by the Financial Accounting Standards Board (FASB). If we determine that it is more likely than not that its fair value is less than its carrying amount, then the two-step goodwill impairment test will be performed. The first step, identifying a potential impairment, compares the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the second step will be performed; otherwise, no further step is required. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying amount of the goodwill. Any excess of the goodwill carrying amount over the applied fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value. As of December 31, 2012, no impairment of goodwill has been identified.

Acquired intangible assets are amortized over their estimated useful lives. We evaluate the recoverability of amortizable intangible assets for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. We have not recorded any such impairment charge during the years presented.

In addition to the recoverability assessment, we routinely review the remaining estimated useful lives of our amortizable intangible assets. If we reduce the estimated useful life assumption for any asset, the remaining unamortized balance would be amortized over the revised estimated useful life.

Components of Results of Operations

Revenue

We generate substantially all of our revenue from advertising and from fees associated with our Payments infrastructure that enables users to purchase virtual and digital goods from our Platform developers.

Advertising. Our advertising revenue is generated by displaying ad products on the Facebook website or mobile app and third-party affiliated websites or mobile apps. Marketers pay for ad products either directly or through their relationships with advertising agencies, based on the number of impressions delivered or the number of clicks made by our users. We recognize revenue from the delivery of click-based ads in the period in which a user clicks on the content. We recognize revenue from the display of impression-based ads in the contracted period in which the impressions are delivered. Impressions are considered delivered when an ad is displayed to users. The number of ads we show is subject to methodological changes as we continue to evolve our ads business and the structure of our ads products. Whether we count the initial display only or every display of an ad as an impression is dependent on where the ad is displayed. For example, an individual ad in News Feed that is purchased on an impression basis may be displayed to users more than once during a day; however, only the initial display of the ad is considered an impression, regardless of how many times the ad is actually displayed within the News Feed.

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Payments and other fees. We enable Payments from our users to our Platform developers. Our users can transact and make payments on the Facebook Platform by using credit cards, PayPal or other payment methods available on our website. We receive a fee from our Platform developers when users make purchases from our Platform developers using our Payments infrastructure. We recognize revenue net of amounts remitted to our Platform developers. We have mandated the use of our Payments infrastructure for game apps on Facebook, and fees related to Payments are generated almost exclusively from games. Cumulatively to date, games from Zynga have generated the majority of our payments and other fees revenue. However, Zynga's contribution to our payments and other fees revenue has decreased over time and this trend may continue. Our other fees revenue consists primarily of user Promoted Posts and, to a lesser extent, Facebook Gifts revenue, and has been immaterial in recent periods.

Cost of Revenue and Operating Expenses

Cost of revenue. Our cost of revenue consists primarily of expenses associated with the delivery and distribution of our products. These include expenses related to the operation of our data centers such as facility and server equipment depreciation, facility and server equipment rent expense, energy and bandwidth costs, support and maintenance costs, and salaries, benefits, and share-based compensation for employees on our operations teams. Cost of revenue also includes credit card and other transaction fees related to processing customer transactions.

Research and development. Research and development expenses consist primarily of salaries, benefits, and share-based compensation for employees on our engineering and technical teams who are responsible for building new products as well as improving existing products. We expense all of our research and development costs as they are incurred.

Marketing and sales. Our marketing and sales expenses consist primarily of salaries, benefits, and share-based compensation for our employees engaged in sales, sales support, marketing, business development, and customer service functions. Our marketing and sales expenses also include user-, developer-, and advertiser-facing marketing and promotional expenditures.

General and administrative. Our general and administrative expenses consist primarily of salaries, benefits, and share-based compensation for our executives as well as our legal, finance, human resources, corporate communications and policy, and other administrative employees. In addition, general and administrative expenses include outside consulting fees, legal and accounting services, and facilities and other supporting overhead costs. General and administrative expenses also include legal settlements and amortization of patents we acquired.

We have reclassified certain prior period expense amounts from marketing and sales to general and administrative within our consolidated statements of income to conform to our current year presentation. These reclassifications did not affect previously reported revenue, total costs and expenses, income from operations, or net income in our consolidated statements of income.

Results of Operations

The following table set forth our consolidated statements of income data:  

	Year Ended December 31,
	2012			2011			2010
	(in millions)
Consolidated Statements of Income Data:
Revenue	$	5,089		$	3,711		$	1,974
Costs and expenses:
Cost of revenue	1,364			860			493
Research and development	1,399			388			144
Marketing and sales	896			393			167
General and administrative	892			314			138
Total costs and expenses	4,551			1,955			942
Income from operations	538			1,756			1,032
Interest and other income (expense), net	(44		)	(61		)	(24		)
Income before provision for income taxes	494			1,695			1,008
Provision for income taxes	441			695			402
Net income	$	53		$	1,000		$	606

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Share-based compensation expense included in costs and expenses:

	Year  Ended December 31,
	2012		2011		2010
	(in millions)
Cost of revenue	$	88	$	9	$	—
Research and development	843		114		9
Marketing and sales	306		37		2
General and administrative	335		57		9
Total share-based compensation expense	$	1,572	$	217	$	20

The following table set forth our consolidated statements of income data (as a percentage of revenue):

	Year  Ended December 31,
	2012		2011		2010
Consolidated Statements of Income Data:
Revenue	100	%	100	%	100	%
Costs and expenses:
Cost of revenue	27		23		25
Research and development	27		10		7
Marketing and sales	18		11		8
General and administrative	18		8		7
Total costs and expenses	89		53		48
Income from operations	11		47		52
Interest and other income (expense), net	(1	)	(2	)	(1	)
Income before provision for income taxes	10		46		51
Provision for income taxes	9		19		20
Net income	1	%	27	%	31	%

Share-based compensation expense included in costs and expenses (as a percentage of revenue):

	Year Ended December 31,
	2012		2011		2010
Cost of revenue	2	%	—	%	—	%
Research and development	17		3		—
Marketing and sales	6		1		—
General and administrative	7		2		—
Total share-based compensation expense	31	%	6	%	1	%

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Revenue

	Year Ended December 31,						2011 to 2012 % Change		2010 to 2011 % Change
	2012		2011		2010
	(in millions)
Advertising	$	4,279	$	3,154	$	1,868	36	%	69	%
Payments and other fees	810		557		106		45	%	425	%
Total revenue	$	5,089	$	3,711	$	1,974	37	%	88	%

2012 Compared to 2011. Revenue in 2012 increased $1.38 billion, or 37% compared to 2011. The increase was due primarily to a 36% increase in advertising revenue during 2012 as compared to 2011.

Advertising revenue grew due to a 32% increase in the number of ads delivered during 2012 and to a 3% increase in the average price per ad. The increase in ads delivered was driven primarily by user growth. MAUs grew 25% from December 31, 2011 to December 31, 2012 and average DAUs grew 28% from December 2011 to December 2012. Various product changes and changes in user engagement generally offset in their impact on the average number of ads per user. For example, the shift to greater mobile use generally reduced ads per user, while the introduction of ads in News Feed increased the number of ads per user. The rate of change in number of ads delivered also differs by geography, driven by factors such as mobile penetration. For example, Europe and Rest of World increased at a faster rate than the United States and Asia.

Growth in the average price per ad during 2012 compared to 2011 was driven primarily by an increase in price per ad in the United States, which benefited from growth in ads in News Feed across desktop and mobile devices. Ads in News Feed have a significantly higher average price per ad due to factors which include the prominent position of the ads. The increase in price per ad in the United States was partially offset by an increased percentage of our worldwide ads being delivered in the Asia and Rest of World geographies where the average price per ad, while growing on a year-over-year basis, is relatively lower. The average price per ad was also affected by a decline in the average price per ad in Europe in 2012 compared to 2011 due to the impact of foreign exchange rate changes, an increase in the percentage of ads being delivered in European regions where the average price per ads is relatively lower, and in part, we believe, to continuing weak economic conditions in that region affecting advertiser demand.

For the year ended December 31, 2012, we estimate that mobile advertising revenue as a percentage of advertising revenue was approximately 11%. As mobile advertising was not offered prior to the first quarter of 2012, comparisons to prior year are not meaningful.

Advertising revenue in the fourth quarter of 2012 increased 41% compared to the same period in 2011, due to a 46% increase in the number of ads delivered, partially offset by a 4% decrease in the average price per ad. The increase in ads delivered was driven by user growth and certain product changes, including the addition of News Feed ads on personal computers and mobile devices. MAUs grew 25% from December 31, 2011 to December 31, 2012 and average DAUs grew 28% from December 2011 to December 2012. Additionally, in the fourth quarter of 2012, we lowered our market reserve price (i.e. the minimum price threshold accepted in our ads auction), and this product change had the effect of increasing the number of ads delivered and decreasing the average price per ad. This change primarily affected the Rest of World and Asia markets where the average price per ad is relatively lower, and the change increased the percentage of our ads that are shown in relatively lower priced markets, which has the effect of decreasing the overall average price per ad. For the fourth quarter of 2012, we estimate that mobile advertising revenue as a percentage of advertising revenue was approximately 23%.

Payments and other fees revenue in 2012 increased $253 million, or 45%, compared to 2011. Excluding the one-time increase in Payments revenue described below, Payments and other fees revenue in 2012 increased 34% compared to 2011. Facebook Payments became mandatory for all game developers accepting payments on the Facebook Platform with limited exceptions on July 1, 2011. Accordingly, comparisons of Payments and other fees revenue to periods before this date may not be meaningful.

Payments and other fees revenue in the fourth quarter of 2012 was $256 million. Comparisons to prior periods are not meaningful due to the one-time increase in Payments revenue described below.

Our Payments terms and conditions provide for a 30-day claim period subsequent to a Payments transaction during which the customer may dispute the virtual or digital goods transaction. Through the third quarter of 2012, we had deferred recognition of Payments revenue until the expiration of this period as we were unable to make reasonable and reliable estimates of future refunds or chargebacks arising during this claim period, due to lack of historical transactional information. Beginning in the fourth quarter of 2012, we had 24 months of historical transactional information which enabled us to estimate future refunds and chargebacks. Accordingly, in the fourth quarter of 2012, we recorded all Payments revenues at the time of the purchase of the related

47

virtual or digital goods, net of estimated refunds or chargebacks. This change resulted in a one-time increase in Payments revenue in the fourth quarter of 2012 of approximately $66 million as we recognized revenue from four months of transactions.

Seven and nine percent of our total revenue for the three and twelve months ended December 31, 2012, respectively and 11% and 12% of our total revenue for the three and twelve months ended December 31, 2011, respectively, came from a single customer, Zynga. Revenue from Zynga consisted of payments processing fees related to their sale of virtual goods and from direct advertising purchased by Zynga.

In 2012, we generated approximately 51% of our revenue from marketers and Platform developers based in the United States, compared to 56% in 2011. The change is due primarily to a faster growth rate of international users and, to a lesser extent, to the expansion of international sales offices and payment methods. The majority of our revenue outside of the United States came from customers located in western Europe, Canada, Australia and Brazil.

2011 Compared to 2010. Revenue in 2011 increased $1.74 billion, or 88% compared to 2010. The increase was due primarily to a 69% increase in advertising revenue to $3.15 billion. Advertising revenue grew due to a 42% increase in the number of ads delivered and an 18% increase in the average price per ad delivered. The increase in ads delivered was driven primarily by user growth; MAUs grew 39% from December 31, 2010 to December 31, 2011 and average DAUs grew 48% from December 2010 to December 2011. The number of ads delivered was also affected by many other factors including product changes that significantly increased the number of ads on many Facebook pages beginning in the fourth quarter of 2010, partially offset by an increase in usage of our mobile products, where we did not show ads, and by various product changes implemented in 2011 that in aggregate modestly reduced the number of ads on certain pages. The increase in average price per ad delivered was affected by factors including improvements in our ability to deliver more relevant ads to users and product changes that contributed to higher user interaction with the ads by increasing their relative prominence.

Payments and other fees revenue increased to $557 million in 2011 due to the adoption of Facebook Payments, which has been gradually adopted by our Platform developers and began generating significant revenue in the fourth quarter of 2010. Facebook Payments became mandatory for all game developers accepting payments on the Facebook Platform with limited exceptions on July 1, 2011. Accordingly, comparisons of payments and other fees revenue to periods before that date may not be meaningful. In 2011, other fees revenue was immaterial.

In 2011, we generated approximately 56% of our revenue from marketers and Platform developers based in the United States, compared to 62% in 2010. This change is due to factors including a faster growth rate of international users and the expansion of international sales offices and payment methods. The majority of our revenue outside of the United States came from customers located in western Europe, Canada, and Australia.

Cost of revenue

	Year Ended December 31,
	2012			2011			2010			2011 to 2012 % Change		2010 to 2011 % Change
	(dollars in millions)
Cost of revenue	$	1,364		$	860		$	493		59	%	74	%
Percentage of revenue	27		%	23		%	25		%

2012 Compared to 2011. Cost of revenue in 2012 increased $504 million, or 59%, compared to 2011. The increase was primarily due to expenses related to expanding our data center operations, including a $257 million increase in depreciation in 2012. Share-based compensation expense increased by $79 million in 2012 compared to 2011 mainly due to the recognition of expenses related to Pre-2011 RSUs triggered by the completion of our IPO in May 2012 and, to a lesser extent, Post-2011 RSUs. Increases in payroll and benefits expenses resulting from a 65% increase in employee headcount also contributed to the increase in cost of revenue in 2012. These expenses supported our user growth, the increased usage of products by users, developers, and marketers, and the launch of new products.

2011 Compared to 2010. Cost of revenue in 2011 increased $367 million, or 74%, compared to 2010. The increase was primarily due to expenses related to expanding our data center operations, including a $164 million increase in depreciation and a $35 million increase in data center facility rent. These expenses supported our user growth, the increased usage of our products by users, developers, and marketers, and the launch of new products. Additionally, credit card and other related revenue processing fees increased by $60 million.

We anticipate that the cost of revenue will increase in dollar amount for the foreseeable future as we expand our data center

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capacity to support user growth, increased user engagement, and the delivery of new products and offerings. The expected increase in cost of revenue may be partially mitigated to the extent we are able to realize improvements in server performance and the efficiency of our technical operations. We expect cost of revenue in absolute dollars and as a percentage of revenue to increase in 2013 compared to 2012 due to our investment in technical infrastructure.

Research and development

	Year Ended December 31,
	2012			2011			2010			2011 to 2012 % Change		2010 to 2011 % Change
	(dollars in millions)
Research and development	$	1,399		$	388		$	144		261	%	169	%
Percentage of revenue	27		%	10		%	7		%

2012 Compared to 2011. Research and development expenses in 2012 increased $1.01 billion, or 261%, compared to 2011. The increase was primarily due to an increase in share-based compensation expense of $729 million in 2012 resulting primarily from the recognition of expenses related to Pre-2011 RSUs triggered by the completion of our IPO in May 2012 and, to a lesser extent, Post-2011 RSUs. Payroll and benefits expense also increased due to a 73% growth in employee headcount in engineering, design, product management, and other technical functions. This investment supported our efforts to improve existing products and build new products for users, developers, and marketers.

2011 Compared to 2010. Research and development expenses in 2011 increased $244 million, or 169%, compared to 2010. The increase was primarily due to an increase from $9 million in 2010 to $114 million in 2011 for share-based compensation expense related to Post-2011 RSUs. Payroll and benefits expense also increased due to a 57% growth in employee headcount in engineering, design, product management, and other technical functions. This investment supported our efforts to improve existing products and build new products for users, developers, and marketers.

In 2013, we plan to continue rapidly hiring engineering, design, product management, and other technical employees. However, we expect research and development expenses will rise in 2013 at a lower rate than it rose in 2012 due to the large share-based compensation expense in the second quarter of 2012 associated with Pre-2011 RSUs triggered by the completion of our IPO.

Marketing and sales

	Year Ended December 31,
	2012		2011		2010		2011 to 2012 % Change		2010 to 2011 % Change
	(dollars in millions)
Marketing and sales	896		393		167		128	%	135	%
Percentage of revenue	18	%	11	%	8	%

2012 Compared to 2011. Marketing and sales expenses in 2012 increased $503 million, or 128%, compared to 2011. The increase was primarily due to an increase in share-based compensation expense of $269 million in 2012 resulting primarily from the recognition of expenses related to Pre-2011 RSUs triggered by the completion of our IPO in May 2012 and, to a lesser extent, Post-2011 RSUs. Payroll and benefits expenses also increased due to a 19% increase in employee headcount to support global sales, business development and customer service. An increase in our user-, developer-, and advertiser-facing marketing expense also contributed to the increase in 2012.

2011 Compared to 2010. Marketing and sales expenses in 2011 increased $226 million, or 135%, compared to 2010. The increase was primarily due to an increase in payroll and benefits expenses resulting from a 45% increase in employee headcount to support global sales, business development, and customer service, and, to a lesser extent, an increase in our user-, developer-, and advertiser-facing marketing. Additionally, share-based compensation expense increased from $2 million in 2010 to $37 million in 2011 due to recognition of expense related to Post-2011 RSUs.

In 2013, we plan to add sales, business development and customer service employees, and increase our investment in user-, developer-, and marketer-facing marketing. However, we expect marketing and sales expenses will rise in 2013 at a lower rate than it rose in 2012 due to the large share-based compensation expense in the second quarter of 2012 associated with Pre-2011 RSUs triggered by the completion of our IPO.

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General and administrative

	Year Ended December 31,
	2012			2011			2010			2011 to 2012 % Change		2010 to 2011 % Change
	(dollars in millions)
General and administrative	$	892		$	314		$	138		184	%	128	%
Percentage of revenue	18		%	8		%	7		%

2012 Compared to 2011. General and administrative expenses in 2012 increased $578 million, or 184%, compared to 2011. The increase was primarily due to an increase in share-based compensation expense of $278 million resulting from recognition of expense related to Pre-2011 RSUs and, to a lesser extent, Post-2011 RSUs. The increase was also due to growth in legal fees and settlement costs, amortization of acquired patents and other professional service fees. Payroll and benefits expenses also increased for 2012 due to a 38% increase in employee headcount in corporate communications and policy, human resources, legal, finance, and other functions.

2011 Compared to 2010. General and administrative expenses in 2011 increased $176 million, or 128%, compared to 2010. The increase was primarily due to an increase in payroll and benefits expenses resulting from a 60% increase in employee headcount in finance, legal, human resources, and other functions. Additionally, outside consulting and legal fees contributed to the increase. Share-based compensation expense increased from $9 million in 2010 to $57 million in 2011 due to recognition of expense related to Post-2011 RSUs.

In 2013, we plan to continue to increase general and administrative employee headcount to support our growth. However, we expect general and administrative expenses will rise in 2013 at a lower rate than it rose in 2012 due to the large share-based compensation expense in the second quarter of 2012 associated with Pre-2011 RSUs triggered by the completion of our IPO.

Interest and other income (expense), net

	Year Ended December 31,
	2012			2011			2010			2011 to 2012 % Change		2010 to 2011 % Change
	(in millions)
Interest expense	$	(51	)	$	(42	)	$	(22	)	21	%	91	%
Other income (expense), net	7			(19		)	(2		)	(137	)%	850	%
Interest and other income (expense), net	$	(44	)	$	(61	)	$	(24	)	(28	)%	154	%

2012 Compared to 2011. Interest and other income (expense), net in 2012 decreased $17 million, or 28%, compared to 2011. Interest expense increased by $9 million primarily due to an increased volume of property and equipment financed by capital leases for 2012 and interest on the $1.5 billion term loan that was drawn down in the fourth quarter of 2012. Changes in other income (expense), net were primarily due to lower foreign exchange losses in 2012 resulting from the periodic re-measurement of our foreign currency balances and an increase in interest income driven by higher invested cash balances.

2011 Compared to 2010. Interest and other income (expense), net in 2011 increased $37 million, or 154%, compared to 2010. Interest expense increased by $20 million, driven by an increase in fees related to our credit facility as described in "—Liquidity and Capital Resources," and the payments related to an increased volume of property and equipment financed by capital leases. The change in other income (expense), net was primarily due to $29 million in foreign exchange related losses in 2011. Foreign exchange losses in 2011 stemmed from the periodic re-measurement of our intercompany Euro balances. Foreign currency balances were immaterial in 2010. These expenses were partially offset by an increase in interest income driven by larger invested cash balances.

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Provision for income taxes

	Year Ended December 31,
	2012			2011			2010			2011 to 2012 % Change		2010 to 2011 % Change
	(dollars in millions)
Provision for income taxes	$	441		$	695		$	402		(37	)%	73	%
Effective tax rate	89		%	41		%	40		%

2012 Compared to 2011. Our provision for income taxes in 2012 decreased $254 million, or 37%, compared to 2011, primarily due to a decrease in pre-tax income. Our effective tax rate increased primarily due to the impact of non-deductible share-based compensation and the losses arising outside the United States in jurisdictions where we do not receive a tax benefit. Our effective tax rate in 2012 was also higher due to the expiration of the federal tax credit for research and development activities.

On January 2, 2013, the American Taxpayer Relief Act of 2012 was enacted, which includes a reinstatement of the federal research and development credit for the tax year ended December 31, 2012. We estimate that our tax credit for 2012 would have been approximately $80 million to $120 million, which we will record as a discrete benefit in the first quarter of 2013.

2011 Compared to 2010. Our provision for income taxes in 2011 increased $293 million, or 73%, compared to 2010 primarily due to an increase in pre-tax income. Our effective tax rate increased primarily due to losses arising outside the United States in jurisdictions where we do not receive a tax benefit and the impact of non-deductible share-based compensation expense during the year.

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Quarterly Results of Operations Data

The following tables set forth our unaudited quarterly consolidated statements of operations data in dollars and as a percentage of total revenue for each of the eight quarters in the period ended December 31, 2012. We have prepared the quarterly consolidated statements of operations data on a basis consistent with the audited consolidated financial statements included in Part II, Item 8, "Financial Statements and Supplementary Data" in this Annual Report on Form 10-K. In the opinion of management, the financial information reflects all adjustments, consisting only of normal recurring adjustments, which we consider necessary for a fair presentation of this data. This information should be read in conjunction with the audited consolidated financial statements and related notes included in Part II, Item 8, "Financial Statements and Supplementary Data" in this Annual Report on Form 10-K. The results of historical periods are not necessarily indicative of the results of operations for any future period.

	Three Months Ended
	Dec 31, 2012		Sep 30, 2012			Jun 30, 2012			Mar 31, 2012		Dec 31, 2011		Sep 30, 2011		Jun 30, 2011		Mar 31, 2011
	(in millions)
Consolidated Statements of Operations Data:
Revenue:
Advertising revenue	$	1,329	$	1,086		$	992		$	872	$	943	$	798	$	776	$	637
Payments and other fees revenue(1)	256		176			192			186		188		156		119		94
Total revenue	1,585		1,262			1,184			1,058		1,131		954		895		731
Costs and expenses:
Cost of revenue	398		322			367			277		247		236		210		167
Research and development	297		244			705			153		124		108		99		57
Marketing and sales	193		168			392			143		120		114		96		62
General and administrative	174		151			463			104		92		82		83		57
Total costs and expenses	1,062		885			1,927			677		583		540		488		343
Income (loss) from operations	523		377			(743		)	381		548		414		407		388
Income (loss) before (provision for) benefit from income taxes	505		372			(765		)	382		520		379		399		398
Net income (loss)	$	64	$	(59	)	$	(157	)	$	205	$	302	$	227	$	240	$	233
Net income (loss) attributable to Class A and Class B common stockholders	$	64	$	(59	)	$	(157	)	$	137	$	205	$	150	$	159	$	153
Earnings (loss) per share attributable to Class A and Class B common stockholders:
Basic	$	0.03	$	(0.02	)	$	(0.08	)	$	0.10	$	0.15	$	0.11	$	0.12	$	0.12
Diluted	$	0.03	$	(0.02	)	$	(0.08	)	$	0.09	$	0.14	$	0.10	$	0.11	$	0.11

Share-based compensation expense included in costs and expenses:

	Three Months Ended
	Dec 31, 2012		Sep 30, 2012		Jun 30, 2012		Mar 31, 2012		Dec 31, 2011		Sep 30, 2011		Jun 30, 2011		Mar 31, 2011
	(in millions)
Cost of revenue	$	9	$	8	$	66	$	5	$	3	$	3	$	3	$    —
Research and development	124		114		545		60		42		33		35		4
Marketing and sales	27		28		232		19		13		13		11		—
General and administrative	24		29		263		19		18		21		15		3
Total share-based compensation expense(2)	$	184	$	179	$	1,106	$	103	$	76	$	70	$	64	$	7

_____________________

(1) In the fourth quarter of 2012, we recorded all Payments revenue at the time of purchase of the related virtual or digital goods, net of estimated refunds or chargebacks, instead of deferring Payment revenue until the expiration of the 30-day claim period, as we are able to estimate future refunds and chargebacks based on historical trends. This charge resulted in a one-time increase in Payment revenue of $66 million in the fourth quarter of 2012.

(2) In the second quarter of 2012, we recognized $986 million of share-based compensation expense related to Pre-2011 RSUs that vested in connection with our IPO.

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	Three Months Ended
	Dec 31, 2012		Sep 30, 2012		Jun 30, 2012		Mar 31, 2012		Dec 31, 2011		Sep 30, 2011		Jun 30, 2011		Mar 31, 2011
	(as a percentage of total revenue)
Consolidated Statements of Operations Data:
Revenue:
Advertising revenue	84	%	86	%	84	%	82	%	83	%	84	%	87	%	87	%
Payments and other fees revenue	16		14		16		18		17		16		13		13
Total revenue	100	%	100	%	100	%	100	%	100	%	100	%	100	%	100	%
Costs and expenses:
Cost of revenue	25		26		31		26		22		25		23		23
Research and development	19		19		60		14		11		11		11		8
Marketing and sales	12		13		33		14		11		12		11		8
General and administrative	11		12		39		10		8		9		9		8
Total costs and expenses	67		70		163		64		52		57		55		47
Income (loss) from operations	33		30		(63	)	36		48		43		45		53
Income (loss) before (provision for) benefit from income taxes	32		29		(65	)	36		46		40		45		54
Net income (loss)	4	%	(5	)%	(13	)%	19	%	27	%	24	%	27	%	32	%
Net income (loss) attributable to Class A and Class B common stockholders	4	%	(5	)%	(13	)%	13	%	18	%	16	%	18	%	21	%

Share-based compensation expense included in costs and expenses:

	Three Months Ended
	Dec 31, 2012		Sep 30, 2012		Jun 30, 2012		Mar 31, 2012		Dec 31, 2011		Sep 30, 2011		Jun 30, 2011		Mar 31, 2011
	(as a percentage of total revenue)
Cost of revenue	1	%	1	%	6	%	— %		— %		— %		— %		— %
Research and development	8		9		46		6		4		3		4		1
Marketing and sales	2		2		20		2		1		1		1		—
General and administrative	2		2		22		2		2		2		2		—
Total share-based compensation expense	12	%	14	%	93	%	10	%	7	%	7	%	7	%	1	%

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Liquidity and Capital Resources

	Year Ended December 31,
	2012			2011			2010
	(in millions)
Consolidated Statements of Cash Flows Data:
Net cash provided by operating activities	$	1,612		$	1,549		$	698
Net cash used in investing activities	(7,024		)	(3,023		)	(324		)
Net cash provided by financing activities	6,283			1,198			781
Purchases of property and equipment	(1,235		)	(606		)	(293		)
Depreciation and amortization	649			323			139
Share-based compensation	1,572			217			20

Our principal sources of liquidity are our cash and cash equivalents, marketable securities, and cash generated from operations. Cash and cash equivalents and marketable securities consist primarily of cash on deposit with banks and investments in money market funds and U.S. government and U.S. government agency securities. Cash and cash equivalents and marketable securities totaled $9.63 billion as of December 31, 2012, an increase of $5.72 billion from December 31, 2011. The most significant cash flow activities consisted of $6.8 billion of net proceeds from our IPO, which was completed in May 2012, $1.61 billion of cash generated from operations, $1.5 billion of loan draw down and $1.03 billion in excess tax benefit from share-based award activity, offset by $2.86 billion of taxes paid related to the net share settlement of RSUs when the Pre-2011 RSUs vested and settled in the fourth quarter of 2012, $1.24 billion used for capital expenditures and $911 million used for acquisitions of businesses and other assets. If we continue to net settle RSUs, we will use additional cash to pay employees' tax withholding obligations in connection with such settlements. We currently anticipate that our available funds, credit facilities, and cash flow from operations will be sufficient to meet our operational cash needs for the foreseeable future.

In February 2012, we entered into an agreement for an unsecured five-year revolving credit facility that allows us to borrow up to $5 billion for general corporate purposes, with interest payable on the borrowed amounts set at London Interbank Offered Rate (LIBOR) plus 1.0%. Under the terms of the agreement, we are obligated to pay a commitment fee of 0.10% per annum on the daily undrawn balance. No amounts were drawn down under this credit facility as of December 31, 2012.

Concurrent with our entering into the revolving credit facility, we also entered into a bridge credit facility agreement that allowed us to borrow up to $3 billion to fund tax withholding and remittance obligations related to the settlement of RSUs in connection with our IPO.

In October 2012, we amended and restated our bridge credit facility, converting it to an unsecured term loan facility (Amended and Restated Term Loan) that allowed us to borrow up to $1.5 billion to fund tax withholding and remittance obligations related to the settlement of RSUs in connection with our IPO, with interest payable on the borrowed amounts set at LIBOR plus 1.0%. We paid origination fees at closing of the Amended and Restated Term Loan, which fees are being amortized over the term of the facility. We drew down the $1.5 billion of the Amended and Restated Term Loan in October 2012 and paid an upfront fee of 0.15% on the loan amount, which fee is being amortized over the remaining term of the facility. Any amounts outstanding will become due and payable on October 25, 2015.

In connection with the draw down of the Amended and Restated Term Loan, to hedge our exposure to interest rate fluctuation, we entered into an interest rate swap agreement. The net effect of this swap agreement is to convert the variable interest rate to a fixed interest rate of 1.46%. The interest rate swap has a maturity date of October 25, 2015.

As of December 31, 2012, our income tax refundable of $451 million reflects the expected refund from income tax loss carrybacks to 2010 and 2011. We expect to receive this refund in the first six months of 2013.

As of December 31, 2012, $565 million of the $9.63 billion in cash and cash equivalents and marketable securities was held by our foreign subsidiaries. We have provided for the additional taxes that would be due if we repatriated these funds for use in our operations in the United States.

Cash Provided by Operating Activities

Cash flow from operating activities during 2012 primarily consisted of adjustments to net income for certain non-cash items such as share-based compensation expense of $1.57 billion and total depreciation and amortization of $649 million, partially offset by income tax refundable of $451 million. The cash flow from operating activities during 2012 compared to 2011 increased modestly

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as the increases in adjustments for non-cash items as described above were offset by a reduction in net income of $947 million and an increase in income tax refundable.

Cash flow from operating activities during 2011 primarily resulted from net income of $1 billion, adjusted for certain non-cash items, including depreciation and amortization of $323 million, and share-based compensation expense of $217 million.

Cash flow from operating activities during 2010 primarily resulted from net income of $606 million, adjusted for certain non-cash items, including depreciation and amortization of $139 million and share-based compensation expense of $20 million, partially offset by cash consumed by working capital of $70 million.

Cash Used in Investing Activities

Cash used in investing activities during 2012 primarily resulted from $4.87 billion for the net purchase of marketable securities, $1.24 billion for capital expenditures related to the purchase of servers, networking equipment, storage infrastructure, and the construction of data centers as well as $911 million for acquisitions of businesses and other assets, such as patents. The increase in cash used in investing activities during 2012 compared to 2011 was mainly due to increases in the purchase of marketable securities, acquisitions of businesses and other assets, and capital expenditures.

Cash used in investing activities during 2011 primarily related to the use of approximately $2.4 billion for the net purchase of marketable securities. Our cash used in investing activities in 2011 also consisted of capital expenditures of $606 million related to the purchase of servers, networking equipment, storage infrastructure, and the construction of data centers.

Cash used in investing activities during 2010 primarily consisted of capital expenditures related to the purchases of property and equipment and the construction of data centers. Changes in restricted cash and deposits consumed $9 million of cash related to security deposits in support of real estate expansion in 2010. Acquisitions, net of cash acquired, also consumed $22 million of cash in 2010.

We anticipate making capital expenditures in 2013 of approximately $1.8 billion.

Cash Provided by Financing Activities

In May 2012, we received $6.8 billion in proceeds from our IPO, net of offering costs. Our financing activities have primarily consisted of equity issuances, lease financing, and debt financing. Net cash provided by financing activities was $6.28 billion and $1.2 billion, in 2012 and 2011, respectively, and included excess tax benefits from stock award activities of $1.03 billion and $433 million for the same periods, respectively. In 2012, our net cash provided by financing activities included the draw down of $1.5 billion from the Amended and Restated Term Loan. We did not have a loan draw down in 2011. In the fourth quarter of 2012, we paid $2.86 billion of taxes related to the net settlement of RSUs when the Pre-2011 RSUs were vested and settled.

In January 2011, we completed an offering of our Class A common stock to certain non-U.S. investors that generated $998 million in net proceeds. In December 2010, we completed an offering of our Class A common stock that generated $500 million in proceeds.

In March 2010, we entered into a credit facility with certain lenders. This facility allowed for the draw down of up to $250 million in unsecured senior loans. In April 2010, we drew down the full amount available under the facility, and in March 2011, we repaid the entire $250 million balance.

Off-Balance Sheet Arrangements

We did not have any off-balance sheet arrangements as of December 31, 2012.

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Contractual Obligations

Our principal commitments consist of obligations under capital and operating leases for equipment and office and data center facilities. The following table summarizes our commitments to settle contractual obligations in cash as of December 31, 2012.

			Payment Due by Period
	Total		Less than 1 Year		1-3 Years		3-5 Years		More than 5 Years
Operating lease obligations	$	851	$	142	$	245	$	212	$	252
Capital lease obligations	979		398		403		35		143
Other contractual commitments(1)	749		659		71		19		—
Long-term debt(2)	1,562		22		1,540		—		—
Total contractual obligations	$	4,141	$	1,221	$	2,259	$	266	$	395

_____________________

(1) Other contractual commitments primarily relate to equipment and supplies for our data center operations, and, to a lesser extent, construction commitments related to our data center sites.

(2) Long-term debt relates to the draw down of our Amended and Restated Term Loan of $1.5 billion including the estimated future interest payments using a fixed rate of 1.46%, which represented our effective interest rate after we entered into an interest rate swap agreement.

In addition, our other liabilities include $100 million related to uncertain tax positions as of December 31, 2012. Due to uncertainties in the timing of the completion of tax audits, the timing of the resolution of these positions is uncertain and we are unable to make a reasonably reliable estimate of the timing of payments in individual years beyond 12 months. As a result, this amount is not included in the above table.

Contingencies

We are involved in claims, lawsuits, government investigations, and proceedings. We record a provision for a liability when we believe that it is both probable that a liability has been incurred, and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. Such legal proceedings are inherently unpredictable and subject to significant uncertainties, some of which are beyond our control. Should any of these estimates and assumptions change or prove to be incorrect, it could have a material impact on our results of operations, financial position, and cash flows.

See Note 10 in the accompanying notes to our consolidated financial statements included in Part II, Item 8, "Financial Statements and Supplementary Data" and Part I, Item 3, "Legal Proceedings" of this Annual Report on Form 10-K for additional information regarding contingencies.

Recently Issued and Adopted Accounting Pronouncement

Comprehensive Income

In May 2011, the FASB issued guidance that changed the requirement for presenting "Comprehensive Income" in the consolidated financial statements. The update requires an entity to present the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and should be applied retrospectively. We adopted this new guidance on January 1, 2012.

Goodwill Impairment Testing

In September 2011, the FASB issued an amendment to an existing accounting standard which provides entities an option to perform a qualitative assessment to determine whether further impairment testing on goodwill is necessary. An entity now has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step impairment test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. This standard is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We adopted this new standard on January 1, 2012 and the adoption did not have a material impact on our financial statements.

56

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to market risks, including changes to foreign currency exchange rates, interest rates, and inflation.

Foreign Currency Exchange Risk

We have foreign currency risks related to our revenue and operating expenses denominated in currencies other than the U.S. dollar, primarily the Euro. In general, we are a net receiver of currencies other than the U.S. dollar. Accordingly, changes in exchange rates, and in particular a strengthening of the U.S. dollar, will negatively affect our revenue and other operating results as expressed in U.S. dollars.

We have experienced and will continue to experience fluctuations in our net income as a result of transaction gains or losses related to revaluing certain current asset and current liability balances that are denominated in currencies other than the functional currency of the entities in which they are recorded. At this time we do not, but in the future we may enter into derivatives or other financial instruments in an attempt to hedge our foreign currency exchange risk. It is difficult to predict the impact hedging activities would have on our results of operations. We recognized foreign currency losses of $9 million and $29 million for the year ended December 31, 2012 and 2011, respectively. Foreign currency losses were not significant in 2010.

Interest Rate Sensitivity

Our exposure to changes in interest rates relates primarily to interest earned and market value on our cash and cash equivalents and marketable securities and interest paid on our long-term debt.

Our cash and cash equivalents and marketable securities consist of cash, certificates of deposit, time deposits, money market funds and U.S. government and U.S. government agency securities. Our investment policy and strategy are focused on preservation of capital and supporting our liquidity requirements. Changes in U.S. interest rates affect the interest earned on our cash and cash equivalents and marketable securities and the market value of those securities. A hypothetical 100 basis point increase in interest rates would result in a decrease of approximately $55 million and $15 million in the market value of our available-for-sale debt securities as of December 31, 2012 and December 31, 2011, respectively. Any realized gains or losses resulting from such interest rate changes would only occur if we sold the investments prior to maturity.

Our long-term debt consists of the $1.5 billion draw down on our three-year unsecured term loan facility that bears variable interest at 1-month LIBOR plus 1.0%. As our risk management objective is to mitigate the risk of changes in cash flows attributable to changes in the designated 1-month LIBOR for the loan, we have entered into an interest rate swap agreement for the exact notional amount of $1.5 billion and a fixed interest rate of 1.46% at the same time the term loan was drawn down to hedge this exposure. Both the term loan and interest rate swap have a maturity date of October 25, 2015. Changes in the cash flows of the interest rate swap are expected to exactly offset the changes in cash flows attributable to fluctuations in the 1-month LIBOR based interest payments on the long-term debt. The net effect of this swap agreement is to convert the variable interest rate to a fixed rate of 1.46%.

Inflation Risk

We do not believe that inflation has had a material effect on our business, financial condition, or results of operations.

57

Item 8. Financial Statements and Supplementary Data

FACEBOOK, INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Ernst & Young LLP, Independent Registered Public Accounting Firm	59
Consolidated Financial Statements:
Consolidated Balance Sheets	60
Consolidated Statements of Income	61
Consolidated Statements of Comprehensive Income	62
Consolidated Statements of Stockholders' Equity	63
Consolidated Statements of Cash Flows	64
Notes to Consolidated Financial Statements	66

The supplementary financial information required by this Item 8, is included in Part II, Item 7 under the caption "Quarterly Results of Operations Data," which is incorporated herein by reference.

Report of Ernst & Young LLP, Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of Facebook, Inc.

We have audited the accompanying consolidated balance sheets of Facebook, Inc. as of December 31, 2012 and 2011, and the related consolidated statements of income, comprehensive income, stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2012. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. We were not engaged to perform an audit of the Company's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Facebook, Inc. at December 31, 2012 and 2011, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2012, in conformity with U.S. generally accepted accounting principles.

/s/ Ernst & Young LLP

San Francisco, California

February 1, 2013

59

FACEBOOK, INC.

CONSOLIDATED BALANCE SHEETS

(In millions, except for number of shares and par value)

	December 31,
	2012		2011
Assets
Current assets:
Cash and cash equivalents	$	2,384	$	1,512
Marketable securities	7,242		2,396
Accounts receivable, net of allowances for doubtful accounts of $22 and $17 as of December 31, 2012 and 2011, respectively	719		547
Income tax refundable	451		—
Prepaid expenses and other current assets	471		149
Total current assets	11,267		4,604
Property and equipment, net	2,391		1,475
Goodwill and intangible assets, net	1,388		162
Other assets	57		90
Total assets	$	15,103	$	6,331
Liabilities and stockholders' equity
Current liabilities:
Accounts payable	$	65	$	63
Platform partners payable	169		171
Accrued expenses and other current liabilities	423		296
Deferred revenue and deposits	30		90
Current portion of capital lease obligations	365		279
Total current liabilities	1,052		899
Capital lease obligations, less current portion	491		398
Long-term debt	1,500		—
Other liabilities	305		135
Total liabilities	3,348		1,432
Commitments and contingencies
Stockholders' equity:
Convertible preferred stock, $0.000006 par value, issuable in series; no shares and 569 million shares authorized as of December 31, 2012 and 2011, respectively, no shares and 543 million shares issued and outstanding as of December 31, 2012 and 2011, respectively	—		615
Common stock, $0.000006 par value; 5,000 million and 4,141 million Class A shares authorized as of December 31, 2012 and 2011, respectively, 1,671 million and 117 million shares issued and outstanding, including 2 million and 1 million outstanding shares subject to repurchase as of December 31, 2012 and 2011, respectively; 4,141 million Class B shares authorized, 701 million and 1,213 million shares issued and outstanding, including 11 million and 2 million outstanding shares subject to repurchase as of December 31, 2012 and 2011, respectively	—		—
Additional paid-in capital	10,094		2,684
Accumulated other comprehensive income (loss)	2		(6		)
Retained earnings	1,659		1,606
Total stockholders' equity	11,755		4,899
Total liabilities and stockholders' equity	$	15,103	$	6,331

See Accompanying Notes to Consolidated Financial Statements.

60

FACEBOOK, INC.

CONSOLIDATED STATEMENTS OF INCOME

(In millions, except per share amounts)

	Year Ended December 31,
	2012			2011			2010
Revenue	$	5,089		$	3,711		$	1,974
Costs and expenses:
Cost of revenue	1,364			860			493
Research and development	1,399			388			144
Marketing and sales	896			393			167
General and administrative	892			314			138
Total costs and expenses	4,551			1,955			942
Income from operations	538			1,756			1,032
Interest and other income (expense), net:
Interest expense	(51		)	(42		)	(22		)
Other income (expense), net	7			(19		)	(2		)
Income before provision for income taxes	494			1,695			1,008
Provision for income taxes	441			695			402
Net income	$	53		$	1,000		$	606
Less: Net income attributable to participating securities	21			332			234
Net income attributable to Class A and Class B common stockholders	$	32		$	668		$	372
Earnings per share attributable to Class A and Class B common stockholders:
Basic	$	0.02		$	0.52		$	0.34
Diluted	$	0.01		$	0.46		$	0.28
Weighted average shares used to compute earnings per share attributable to Class A and Class B common stockholders:
Basic	2,006			1,294			1,107
Diluted	2,166			1,508			1,414
Share-based compensation expense included in costs and expenses:
Cost of revenue	$	88		$	9		$	—
Research and development	843			114			9
Marketing and sales	306			37			2
General and administrative	335			57			9
Total share-based compensation expense	$	1,572		$	217		$	20

See Accompanying Notes to Consolidated Financial Statements.

61

FACEBOOK, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In millions)

	Year Ended December 31,
	2012			2011		2010
Net income	$	53		$	1,000	$	606
Other comprehensive income (loss):
Foreign currency translation adjustment	9			—		(6		)
Unrealized gain on available-for-sale investments, net of tax	1			—		—
Unrealized loss on derivative, net of tax	(2		)	—		—
Comprehensive income	$	61		$	1,000	$	600

See Accompanying Notes to Consolidated Financial Statements.

62

FACEBOOK, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(In millions)

	Convertible Preferred Stock					Class A and Class B Common Stock				Additional Paid-In Capital			Accumulated Other Comprehensive (Loss) Income			Retained Earnings		Total Stockholders' Equity
	Shares		Amount			Shares		Par Value
Balances at December 31, 2009	543		$	615		1,070		$	—	$	253		$	—		$	—	$	868
Issuance of common stock, net of issuance costs	—		—			24		—		500			—			—		500
Issuance of common stock for cash upon exercise of stock options	—		—			70		—		6			—			—		6
Issuance of common stock related to acquisitions	—		—			6		—		60			—			—		60
Conversion of Series A preferred stock to common stock	(2	)	—			2		—		—			—			—		—
Reclassification of option liability to additional paid-in capital	—		—			—		—		3			—			—		3
Share-based compensation, related to employee share-based awards	—		—			—		—		17			—			—		17
Share-based compensation, related to nonemployee share-based awards	—		—			—		—		1			—			—		1
Excess tax benefit from share-based award activity, net of deferred tax impact	—		—			—		—		107			—			—		107
Other comprehensive loss	—		—			—		—		—			(6		)	—		(6		)
Net income	—		—			—		—		—			—			606		606
Balances at December 31, 2010	541		615			1,172		—		947			(6		)	606		2,162
Issuance of common stock, net of issuance costs	—		—			48		—		998			—			—		998
Issuance of common stock for cash upon exercise of stock options	—		—			102		—		28			—			—		28
Issuance of common stock to nonemployees for past services	—		—			—		—		3			—			—		3
Issuance of common stock related to acquisitions	—		—			2		—		58			—			—		58
Exercise of preferred stock warrants	8		—			—		—		—			—			—		—
Conversion of Series B & C preferred stock to common stock	(6	)	—			6		—		—			—			—		—
Share-based compensation, related to employee share-based awards	—		—			—		—		217			—			—		217
Excess tax benefit from share-based award activity	—		—			—		—		433			—			—		433
Net income	—		—			—		—		—			—			1,000		1,000
Balances at December 31, 2011	543		615			1,330		—		2,684			(6		)	1,606		4,899
Issuance of common stock, net of issuance costs	—		—			180		—		6,760			—			—		6,760
Issuance of common stock for cash upon exercise of stock options	—		—			135		—		17			—			—		17
Issuance of common stock to nonemployees for past services	—		—			—		—		1			—			—		1
Issuance of common stock related to acquisitions	—		—			26		—		274			—			—		274
Issuance of common stock for settlement of restricted stock units (RSUs)	—		—			279		—		—			—			—		—
Shares withheld related to net share settlement of RSUs	—		—			(123	)	—		(2,862		)	—			—		(2,862		)
Conversion of Series A, B, C, D & E preferred stock to common stock	(543	)	(615		)	545		—		615			—			—		—
Share-based compensation, related to employee share-based awards	—		—			—		—		1,572			—			—		1,572
Excess tax benefit from share-based award activity	—		—			—		—		1,033			—			—		1,033
Other comprehensive income	—		—			—		—		—			8			—		8
Net income	—		—			—		—		—			—			53		53
Balances at December 31, 2012	—		$	—		2,372		$	—	$	10,094		$	2		$	1,659	$	11,755

See Accompanying Notes to Consolidated Financial Statements.

63

FACEBOOK, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

	Year Ended December 31,
	2012			2011			2010
Cash flows from operating activities
Net income	$	53		$	1,000		$	606
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	649			323			139
Loss on write-off of equipment	15			4			3
Share-based compensation	1,572			217			20
Deferred income taxes	(186		)	(30		)	23
Tax benefit from share-based award activity	1,033			433			115
Excess tax benefit from share-based award activity	(1,033		)	(433		)	(115		)
Changes in assets and liabilities:
Accounts receivable	(170		)	(174		)	(209		)
Income tax refundable	(451		)	—			—
Prepaid expenses and other current assets	(14		)	(24		)	(38		)
Other assets	2			(5		)	(6		)
Accounts payable	1			6			12
Platform partners payable	(2		)	96			75
Accrued expenses and other current liabilities	160			37			20
Deferred revenue and deposits	(60		)	49			37
Other liabilities	43			50			16
Net cash provided by operating activities	1,612			1,549			698
Cash flows from investing activities
Purchases of property and equipment	(1,235		)	(606		)	(293		)
Purchases of marketable securities	(10,307		)	(3,025		)	—
Sales of marketable securities	2,100			113			—
Maturities of marketable securities	3,333			516			—
Investments in non-marketable equity securities	(2		)	(3		)	—
Acquisitions of businesses, net of cash acquired, and purchases of intangible and other assets	(911		)	(24		)	(22		)
Change in restricted cash and deposits	(2		)	6			(9		)
Net cash used in investing activities	(7,024		)	(3,023		)	(324		)
Cash flows from financing activities
Net proceeds from issuance of common stock	6,760			998			500
Taxes paid related to net share settlement of equity awards	(2,862		)	—			—
Proceeds from exercise of stock options	17			28			6
Proceeds from long-term debt, net of issuance cost	1,496			—			250
Repayment of long-term debt	—			(250		)	—
Proceeds from sale and lease-back transactions	205			170			—
Principal payments on capital lease obligations	(366		)	(181		)	(90		)
Excess tax benefit from share-based award activity	1,033			433			115
Net cash provided by financing activities	6,283			1,198			781
Effect of exchange rate changes on cash and cash equivalents	1			3			(3		)
Net increase (decrease) in cash and cash equivalents	872			(273		)	1,152
Cash and cash equivalents at beginning of period	1,512			1,785			633
Cash and cash equivalents at end of period	$	2,384		$	1,512		$	1,785

See Accompanying Notes to Consolidated Financial Statements.

64

FACEBOOK, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

	Year Ended December 31,
	2012			2011		2010
Supplemental cash flow data
Cash paid during the period for:
Interest	$	38		$	28	$	23
Income taxes, net	$	53		$	197	$	261
Non-cash investing and financing activities:
Net change in accounts payable and accrued expenses and other current liabilities related to property and equipment additions	$	(40	)	$	135	$	47
Property and equipment acquired under capital leases	$	340		$	473	$	217
Fair value of shares issued related to acquisitions of businesses and other assets	$	274		$	58	$	60

See Accompanying Notes to Consolidated Financial Statements.

65

FACEBOOK, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1. Summary of Significant Accounting Policies

Organization and Description of Business

Facebook was incorporated in Delaware in July 2004. Our mission is to make the world more open and connected. We build products that support our mission by providing utility to Facebook users, Platform developers, and marketers. We generate substantially all of our revenue from advertising and from fees associated with our Payments infrastructure that enables users to purchase virtual and digital goods from our Platform developers.

Basis of Presentation

We prepared the consolidated financial statements in accordance with U.S. generally accepted accounting principles (GAAP). The consolidated financial statements include the accounts of Facebook, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated.

Use of Estimates

Conformity with GAAP requires the use of estimates and judgments that affect the reported amounts in the consolidated financial statements and accompanying notes. These estimates form the basis for judgments we make about the carrying values of our assets and liabilities, which are not readily apparent from other sources. We base our estimates and judgments on historical information and on various other assumptions that we believe are reasonable under the circumstances. GAAP requires us to make estimates and judgments in several areas, including, but not limited to, those related to revenue recognition, collectability of accounts receivable, contingent liabilities, fair value of share-based awards, fair value of financial instruments, fair value of acquired intangible assets and goodwill, useful lives of intangible assets and property and equipment, and income taxes. These estimates are based on management's knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ materially from those estimates.

Reclassifications

We have reclassified certain prior period amounts within our consolidated statements of income and cash flows to conform to our current year presentation. These reclassifications did not affect previously reported revenue, total costs and expenses, income from operations, net income in the consolidated statements of income, or net cash provided by operating activities in the consolidated statements of cash flows.

Revenue Recognition

We generate substantially all of our revenue from advertising and payment processing fees. We recognize revenue once all of the following criteria have been met:

• persuasive evidence of an arrangement exists;

• delivery of Facebook's obligations to our customer has occurred;

• the price is fixed or determinable; and

• collectability of the related receivable is reasonably assured.

Revenue for the years ended December 31, 2012, 2011, and 2010 consists of the following (in millions):

	Year Ended December 31,
	2012		2011		2010
Advertising	$	4,279	$	3,154	$	1,868
Payments and other fees	810		557		106
Total revenue	$	5,089	$	3,711	$	1,974

Advertising

Advertising revenue is generated by displaying ad products on the Facebook website or mobile app and third-party affiliated websites or mobile apps. The arrangements are evidenced by either online acceptance of terms and conditions or contracts that stipulate

66

the types of advertising to be delivered, the timing and the pricing. Marketers pay for ad products either directly or through their relationships with advertising agencies, based on the number of impressions delivered or the number of clicks made by our users. The typical term of an advertising arrangement is approximately 30 days with billing generally occurring after the delivery of the advertisement.

We recognize revenue from the delivery of click-based ads in the period in which a user clicks on the content. We recognize revenue from the display of impression-based ads in the contracted period in which the impressions are delivered. Impressions are considered delivered when an ad is displayed to users.

Payments and Other Fees

We enable Payments from our users to our Platform developers. Our users can transact and make payments on the Facebook Platform by using credit cards, PayPal or other payment methods available on our website. The primary method for users to transact with the developers on the Facebook Platform is via the purchase of our virtual currency, which enables our users to purchase virtual and digital goods in games and apps. Upon the initial sale of our virtual currency, we record consideration received from a user as a deposit.

When a user engages in a payment transaction utilizing our virtual currency for the purchase of a virtual or digital good from a Platform developer, we reduce the user's virtual currency balance by the price of the purchase, which is a price that is solely determined by the Platform developer. We remit to the Platform developer an amount that is based on the total amount of virtual currency redeemed less the processing fee that we charge the Platform developer for the transaction. Our revenue is the net amount of the transaction, representing our processing fee for the service performed. We record revenue on a net basis as we do not consider ourselves to be the principal in the sale of the virtual or digital good to the user.

Our Payments terms and conditions provide for a 30-day claim period subsequent to a Payments transaction during which the customer may dispute the virtual or digital goods transaction. Through the third quarter of 2012, we had deferred recognition of Payments revenue until the expiration of this period as we were unable to make reasonable and reliable estimates of future refunds or chargebacks arising during this claim period, due to lack of historical transactional information. Beginning in the fourth quarter of 2012, we had 24 months of historical transactional information which enabled us to estimate future refunds and chargebacks. Accordingly, in the fourth quarter of 2012, we recorded all Payments revenues at the time of the purchase of the related virtual or digital goods, net of estimated refunds or chargebacks. This change resulted in a one-time increase in Payments revenue in the fourth quarter of 2012 of approximately $66 million as we recognized revenue from four months of transactions.

Other fees, which includes user Promoted Posts and, to a lesser extent, Facebook Gifts, have not been material in all periods presented in our financial statements.

Revenue is recognized net of applicable sales and other taxes.

Cost of Revenue

Our cost of revenue consists primarily of expenses associated with the delivery and distribution of our products. These include expenses related to the operation of our data centers such as facility and server equipment depreciation, facility and server equipment rent expense, energy and bandwidth costs, support and maintenance costs, and salaries, benefits and share-based compensation for certain personnel on our operations teams. Cost of revenue also includes credit card and other transaction fees related to processing customer transactions.

Share-based Compensation

We account for share-based employee compensation plans under the fair value recognition and measurement provisions of GAAP. Those provisions require all share-based payments to employees, including grants of stock options and RSUs, to be measured based on the grant-date fair value of the awards, with the resulting expense generally recognized in our consolidated statements of income over the period during which the employee is required to perform service in exchange for the award.

Prior to January 1, 2011, we granted RSUs (Pre-2011 RSUs) under our 2005 Stock Plan to our employees and members of our board of directors that vested upon the satisfaction of both a service condition and a liquidity condition. The service condition for the majority of these awards is satisfied over four years. The liquidity condition was satisfied six months after our initial public offering (IPO) in May 2012. The vesting condition that was satisfied six months following our IPO did not affect the expense attribution period for the RSUs for which the service condition has been met as of the date of our IPO. This six-month period was not a substantive service condition and, accordingly, beginning on the effectiveness of our IPO in May 2012, we recognized cumulative share-based compensation expense for the portion of the RSUs that had met the service condition, following the accelerated attribution method (net of estimated forfeitures). In the year ended December 31, 2012, we recognized $1.04 billion of share-based compensation expense related to our Pre-2011 RSUs. Refer to Note 11 Stockholders' Equity for disclosure with respect to the settlement of the Pre-2011 RSUs.

RSUs granted on or after January 1, 2011 (Post-2011 RSUs) under our 2005 Stock Plan or 2012 Equity Incentive Plan (2012 Plan)are not subject to a liquidity condition in order to vest, and compensation expense related to these grants is based on the grant date fair

67

value of the RSUs and is recognized on a straight-line basis over the applicable service period. The majority of Post-2011 RSUs are earned over a service period of four to five years, and vested shares will be settled beginning in 2013.

Share-based compensation expense is recorded net of estimated forfeitures in our consolidated statements of income and as such, only those share-based awards that we expect to vest are recorded. We estimate the forfeiture rate based on historical forfeitures of equity awards and adjust the rate to reflect changes in facts and circumstances, if any. We will revise our estimated forfeiture rate if actual forfeitures differ from our initial estimates.

We have historically issued unvested restricted shares to employee stockholders of certain acquired companies. As these awards are generally subject to continued post-acquisition employment, we have accounted for them as post-acquisition share-based compensation expense. We recognize compensation expense equal to the grant date fair value of the common stock on a straight-line basis over the employee's required service period.

During the years ended December 31, 2012, 2011, and 2010, we realized tax benefits from share-based award activity of $1.03 billion, $433 million and $115 million, respectively. These amounts reflect the extent that the total reduction to our income tax liability from share-based award activity was greater than the amount of the deferred tax assets that we had previously recorded in anticipation of these benefits. These amounts are the aggregate of the individual transactions in which the reduction to our income tax liability was greater than the deferred tax assets that we recorded, reduced by any individual transactions in which the reduction to our income tax liability was less than the deferred tax assets that were recorded. These net amounts were recorded as an adjustment to stockholders' equity in each period, as an increase to cash flows from operating activities, and were not recognized in our consolidated statements of income.

The tax benefits realized from share-based award activity of $1.03 billion relate to both the reduction of current year income tax liabilities and the expected refund of $451 million from income tax loss carrybacks to 2010 and 2011.

In addition, we reported excess tax benefits that decreased our cash flows from operating activities and increased our cash flows from financing activities for the years ended December 31, 2012, 2011, and 2010, by $1.03 billion, $433 million, $115 million, respectively. The amounts of these excess tax benefits reflect the total of the individual transactions in which the reduction to our income tax liability was greater than the deferred tax assets that were recorded, but were not reduced by any of the individual transactions in which the reduction to our income tax liability was less than the deferred tax assets that were recorded.

Income Taxes

We recognize income taxes under the asset and liability method. We recognize deferred income tax assets and liabilities for the expected future consequences of temporary differences between the financial reporting and tax bases of assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to apply to taxable income for the years in which differences are expected to reverse. We recognize the effect on deferred income taxes of a change in tax rates in income in the period that includes the enactment date.

We record a valuation allowance to reduce our deferred tax assets to the net amount that we believe is more likely than not to be realized. We consider all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income and ongoing tax planning strategies in assessing the need for a valuation allowance.

We recognize tax benefits from uncertain tax positions only if we believe that it is more likely than not that the tax position will be sustained on examination by the taxing authorities based on the technical merits of the position. We make adjustments to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate. The provision for income taxes includes the effects of any reserves that are considered appropriate, as well as the related net interest and penalties.

Advertising Expense

Advertising costs are expensed when incurred and are included in marketing and sales expenses in the accompanying consolidated statements of income. We incurred advertising expenses of $67 million, $28 million, and $8 million for the years ended December 31, 2012, 2011, and 2010, respectively.

Cash and Cash Equivalents, and Marketable Securities

Cash and cash equivalents primarily consist of cash on deposit with banks and investments in money market funds, and U.S. government and U.S. government agency securities with maturities of 90 days or less from the date of purchase.

We hold investments in marketable securities, consisting of U.S. government and U.S. government agency securities. We classify our marketable securities as available-for-sale investments in our current assets because they represent investments of cash available for current operations. Our available-for-sale investments are carried at estimated fair value with any unrealized gains and losses, net of taxes, included in accumulated other comprehensive income/(loss) in stockholders' equity. Unrealized losses are charged against other

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income (expense), net when a decline in fair value is determined to be other-than-temporary. We have not recorded any such impairment charge in the periods presented. We determine realized gains or losses on sale of marketable securities on a specific identification method, and record such gains or losses as other income (expense), net.

We classify certain restricted cash balances within prepaid expenses and other current assets and other assets on the accompanying consolidated balance sheets based upon the term of the remaining restrictions.

Non-Marketable Securities

We invest in certain investment funds that are not publicly traded. We carry these investments at cost because we do not have significant influence over the underlying investee. We assess for any other-than-temporary impairment at least on an annual basis. No impairment charge has been recorded to-date on our non-marketable securities. We classify these investments within other assets on the accompanying consolidated balance sheets.

Derivative Financial Instruments

We account for derivative instruments as either assets or liabilities and carry them at fair value. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash-flow hedges, the effective portion of the gain or loss on the derivative instruments is initially reported as a separate component of accumulated other comprehensive income (AOCI) in shareholders' equity and is subsequently recognized in earnings when the hedge exposure is recognized in earnings. The ineffective portion of the gain or loss on the derivative instruments, if any, is recognized in earnings. To receive hedge accounting treatment, a cash flow hedge must be highly effective in offsetting changes to expected future cash flows on the hedged transaction.

In October 2012 we entered into an interest rate swap agreement to hedge our exposure to interest rate fluctuation with respect to our $1.5 billion floating rate three-year unsecured term loan facility. The critical terms of the interest rate swap agreement and the related debt agreement match and allow us to designate the interest rate swap as a highly effective cash flow hedge under GAAP. We periodically assess the effectiveness of our hedged transaction. The interest rate swap agreement is currently our only derivative instrument and is not used for trading purpose. Refer to Note 9 Long-term Debt for further disclosure on the interest rate swap agreement.

Fair Value of Financial Instruments

We apply fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. We define fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities, which are required to be recorded at fair value, we consider the principal or most advantageous market in which we would transact and the market-based risk measurements or assumptions that market participants would use in pricing the asset or liability, such as risks inherent in valuation techniques, transfer restrictions and credit risk. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1-Quoted prices in active markets for identical assets or liabilities.

Level 2-Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3-Inputs that are generally unobservable and typically reflect management's estimate of assumptions that market participants would use in pricing the asset or liability.

Our valuation techniques used to measure the fair value of money market funds and marketable debt securities were derived from quoted prices in active markets for identical assets or liabilities and our valuation technique used to measure the fair value of our derivative instrument was based on a model-driven valuation using significant inputs derived from or corroborated by observable market data.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded and carried at the original invoiced amount less an allowance for any potential uncollectible amounts. We make estimates for the allowance for doubtful accounts based upon our assessment of various factors, including historical experience, the age of the accounts receivable balances, credit quality of our customers, current economic conditions, and other factors that may affect customers' ability to pay.

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Property and Equipment

Property and equipment, which includes amounts recorded under capital leases, are stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets or the remaining lease term, in the case of a capital lease, whichever is shorter.

The estimated useful lives of property and equipment are described below:

Property and Equipment	Useful Life
Network equipment	Three to four years
Buildings	15 to 20 years
Computer software, office equipment and other	Two to five years
Leased equipment and leasehold improvements	Lesser of estimated useful life or remaining lease term

Land and assets held within construction in progress are not depreciated. Construction in progress is related to the construction or development of property and equipment that have not yet been placed in service for their intended use.

The cost of maintenance and repairs is expensed as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from their respective accounts, and any gain or loss on such sale or disposal is reflected in income from operations.

Lease Obligations

We lease office space, data centers, and equipment under non-cancelable capital and operating leases with various expiration dates through 2027. Certain of the operating lease agreements contain rent holidays, rent escalation provisions, and purchase options. Rent holidays and rent escalation provisions are considered in determining the straight-line rent expense to be recorded over the lease term. The lease term begins on the date of initial possession of the leased property for purposes of recognizing lease expense on a straight-line basis over the term of the lease. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably assured at lease inception.

Loss Contingencies

We are involved in various lawsuits, claims, investigations and proceedings that arise in the ordinary course of business. We record a liability when we believe that it is both probable that a loss has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. We review these provisions at least quarterly and adjust these provisions accordingly to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information.

Business Combinations

We allocate the fair value of purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets. During the measurement period, which is one year from the acquisition date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings.

Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets

We evaluate the recoverability of property and equipment and amortizable intangible assets for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. We have not recorded any such impairment charge during the years presented.

We review goodwill for impairment at least annually or more frequently if events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. We have elected to first assess the qualitative factors to determine whether it is more likely than not that the fair value of our single reporting operating unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment under the new authoritative guidance issued by the Financial Accounting Standards Board (FASB). If we determine that it is more likely than not that its fair value is less than its carrying amount, then the two-step goodwill impairment test is performed. The first step, identifying a potential impairment, compares the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the second step would need to be performed; otherwise, no

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further step is required. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying amount of the goodwill. Any excess of the goodwill carrying amount over the applied fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value. As of December 31, 2012, no impairment of goodwill has been identified.

Acquired amortizable intangible assets, which are included in goodwill and intangible assets, net, are amortized on a straight-line basis over the estimated useful lives of the assets. The estimated remaining useful lives for intangible assets range from less than one year to 17 years.

In addition to the recoverability assessment, we routinely review the remaining estimated useful lives of property and equipment and amortizable intangible assets. If we reduce the estimated useful life assumption for any asset, the remaining unamortized balance would be amortized or depreciated over the revised estimated useful life.

Deferred Revenue and Deposits

Deferred revenue consists of billings in advance of revenue recognition. Deposits relate to unused virtual currency held by our users. Once this virtual currency is utilized by a user, approximately 70% of this amount would then be payable to the Platform developer and the balance would be recognized as revenue.

Deferred revenue and deposits consists of the following (in millions):

	December 31,
	2012		2011
Deferred revenue	$	8	$	75
Deposits	22		15
Total deferred revenue and deposits	$	30	$	90

Foreign Currency

Generally the functional currency of our international subsidiaries is the local currency. We translate the financial statements of these subsidiaries to U.S. dollars using month-end rates of exchange for assets and liabilities, and average rates of exchange for revenue, costs, and expenses. Translation gains and losses are recorded in accumulated other comprehensive income (loss) as a component of stockholders' equity. Net losses resulting from foreign exchange transactions were $9 million, $29 million and $1 million for the years ended December 31, 2012, 2011 and 2010, respectively. These losses were recorded as other income (expense), net on our consolidated statements of income.

Credit Risk and Concentration

Financial instruments owned by the company that are potentially subject to concentrations of credit risk consist primarily of cash, cash equivalents, restricted cash, marketable securities, accounts receivable, and derivative instruments. Cash equivalents consist of short-term money market funds and U.S. government and U.S. government agency securities, which are deposited with reputable financial institutions. Marketable securities consist of investments in U.S. government and U.S. government agency securities. Our investment policy limits investment instruments to U.S. government and U.S. government agency securities with the main objective of preserving capital and maintaining liquidity.

Accounts receivable are typically unsecured and are derived from revenue earned from customers across different industries and countries. We generated 51%, 56%, and 62% of our revenue for the years ended December 31, 2012, 2011, and 2010, respectively, from marketers and Platform developers based in the United States, with the majority of revenue outside of the United States coming from customers located in western Europe, Canada, Australia, and Brazil.

We perform ongoing credit evaluations of our customers, and generally do not require collateral. We maintain an allowance for estimated credit losses. During the years ended December 31, 2012, 2011, and 2010, our bad debt expenses were $9 million, $8 million, and $9 million, respectively. In the event that accounts receivable collection cycles deteriorate, our operating results and financial position could be adversely affected.

Revenue from one customer, Zynga, represented 12% of total revenue for the year ended December 31, 2011. Revenue from Zynga consisted of payments processing fees related to their sale of virtual goods and from direct advertising purchased by Zynga. No customer represented 10% or more of total revenue during the years ended December 31, 2012 and 2010.

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Segments

Our chief operating decision-maker is our Chief Executive Officer who reviews financial information presented on a consolidated basis. There are no segment managers who are held accountable by the chief operating decision-maker, or anyone else, for operations, operating results, and planning for levels or components below the consolidated unit level. Accordingly, we have determined that we have a single reporting segment and operating unit structure.

Recently Issued and Adopted Accounting Pronouncement

Comprehensive Income

In May 2011, the FASB issued guidance that changed the requirement for presenting "Comprehensive Income" in the consolidated financial statements. The update requires an entity to present the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and should be applied retrospectively. We adopted this new guidance on January 1, 2012.

Goodwill Impairment Testing

In September 2011, the FASB issued an amendment to an existing accounting standard which provides entities an option to perform a qualitative assessment to determine whether further impairment testing on goodwill is necessary. An entity now has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step impairment test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. This standard is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We adopted this new standard on January 1, 2012 and the adoption did not have a material impact on our financial statements.

Note 2. Acquisitions

In August 2012, we completed our acquisition of Instagram, Inc. (Instagram), a privately-held company which has built a mobile phone-based photo-sharing service that is expected to enhance our photos product offerings and to enable users to increase their levels of mobile engagement and photo sharing. We have accounted for this transaction as a business acquisition for a total purchase price of $521 million, consisting of the issuance of approximately 12 million vested shares of our Class B common stock to non-employee stockholders of Instagram and $300 million in cash. The value of the equity component of the purchase price was determined for accounting purposes based on the fair value of our common stock on the closing date. We also issued approximately 11 million unvested shares of our Class B common stock to employee stockholders of Instagram on the closing date, with an aggregate fair value of $194 million, which will be recognized as they vest over a three-year service period as share-based compensation expense.

In 2012, we also completed other business acquisitions for total consideration of $87 million. These acquisitions were not material to our consolidated financial statements individually or in the aggregate. Pro forma results of operations related to our acquisition of Instagram or of other companies during the year ended December 31, 2012 have not been presented because they are not material to our consolidated statements of income, either individually or in the aggregate.

The following table summarizes the allocation of the fair values of the assets acquired and liabilities assumed and the related useful lives, where applicable:

	Instagram, Inc.				Other
	(in millions)			Useful lives (in years)	(in millions)			Useful lives (in years)
Amortizable intangible assets:
Acquired technology	$	74		5	$	20		3 - 5
Tradename and other	64			2 - 7	8			2 - 3
Net liabilities assumed	(1		)		(4		)
Deferred tax liabilities	(49		)		(9		)
Net assets acquired	$	88			$	15
Goodwill	433				72
Total fair value considerations	$	521			$	87

Goodwill generated from all business acquisitions completed during 2012 is primarily attributable to expected synergies from future growth and potential monetization opportunities and is not deductible for tax purposes.

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In 2012, we also acquired $633 million of patents and other intellectual property rights. We completed the largest of these intangible asset purchases in June 2012 under an agreement with Microsoft Corporation pursuant to which we were assigned Microsoft's rights to acquire approximately 615 U.S. patents and patent applications and certain of their foreign counterparts, consisting of approximately 170 foreign patents and patent applications, that were subject to an agreement between AOL Inc. and Microsoft entered into on April 5, 2012. We paid $550 million in cash in exchange for these patents and patent applications. As part of this transaction, we established a deferred tax liability of $49 million to reflect the difference between the future tax basis and book basis in the acquired patents and patent applications, which also increased the capitalized patent cost by this amount. As part of this transaction, we obtained a license to the other AOL patents and patent applications being purchased by Microsoft and granted Microsoft a license to the AOL patents and patent applications that we acquired. The acquisitions of these patents, patent applications and other intellectual property rights were accounted for as asset acquisitions. Patents acquired during 2012 have estimated useful lives ranging from three to 17 years from the dates of acquisition.

Note 3. Earnings per Share

We compute earnings per share (EPS) of Class A and Class B common stock using the two-class method required for participating securities. Prior to the date of the IPO, we considered all series of our convertible preferred stock to be participating securities due to their non-cumulative dividend rights. Immediately after the completion of our IPO in May 2012, all outstanding shares of convertible preferred stock converted to Class B common stock. Additionally, we consider restricted stock awards to be participating securities, because holders of such shares have non-forfeitable dividend rights in the event of our declaration of a dividend for common shares.

Undistributed earnings allocated to these participating securities are subtracted from net income in determining net income attributable to common stockholders. Net losses, if any are not allocated to these participating securities. Basic EPS is computed by dividing net income attributable to common stockholders by the weighted-average number of shares of our Class A and Class B common stock outstanding, adjusted for outstanding shares that are subject to repurchase.

For the calculation of diluted EPS, net income attributable to common stockholders for basic EPS is adjusted by the effect of dilutive securities, including awards under our equity compensation plans. In addition, the computation of the diluted EPS of Class A common stock assumes the conversion from Class B common stock, while the diluted EPS of Class B common stock does not assume the conversion of those shares. Diluted EPS attributable to common stockholders is computed by dividing the resulting net income attributable to common stockholders by the weighted-average number of fully diluted common shares outstanding.

Dilutive securities in our diluted EPS calculation for the years ended December 31, 2011 and 2010 do not include Pre-2011 RSUs. Vesting of these RSUs is dependent upon the satisfaction of both a service condition and a liquidity condition. The liquidity condition is satisfied upon the occurrence of a qualifying event, defined as a change of control transaction or six months following the completion of our IPO. Our IPO did not occur until May 2012. Therefore, prior to this date the holders of these RSUs had no rights in our undistributed earnings and accordingly, they are excluded from the effect of basic and dilutive securities. However, subsequent to the completion of our IPO in May 2012, these RSUs are included in our basic and diluted EPS calculation. Post-2011 RSUs are not subject to a liquidity condition in order to vest, and are thus included in the calculation of diluted EPS. We also excluded 15 million and three million Post-2011 RSUs for the years ended December 31, 2012 and December 31, 2011, respectively, and two million shares issuable upon exercise of employee stock options for the year ended December 31, 2010 because the impact would be anti-dilutive.

Basic and diluted EPS are the same for each class of common stock because they are entitled to the same liquidation and dividend rights.

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The numerators and denominators of the basic and diluted EPS computations for our common stock are calculated as follows (in millions, except per share amounts):

	Year Ended December 31,
	2012				2011				2010
	Class A		Class B		Class A		Class B		Class A		Class B
Basic EPS:
Numerator
Net income	$	18	$	35	$	85	$	915	$	18	$	588
Less: Net income attributable to participating securities	7		14		28		304		7		227
Net income attributable to common stockholders	$	11	$	21	$	57	$	611	$	11	$	361
Denominator
Weighted average shares outstanding	668		1,344		110		1,189		32		1,081
Less: Shares subject to repurchase	1		5		—		5		—		6
Number of shares used for basic EPS computation	667		1,339		110		1,184		32		1,075
Basic EPS	$	0.02	$	0.02	$	0.52	$	0.52	$	0.34	$	0.34
Diluted EPS:
Numerator
Net income attributable to common stockholders	$	11	$	21	$	57	$	611	$	11	$	361
Reallocation of net income attributable to participating securities	—		—		31		—		30		—
Reallocation of net income as a result of conversion of Class B to Class A common stock	21		—		611		—		361		—
Reallocation of net income to Class B common stock	—		1		—		37		—		32
Net income attributable to common stockholders for diluted EPS	$	32	$	22	$	699	$	648	$	402	$	393
Denominator
Number of shares used for basic EPS computation	667		1,339		110		1,184		32		1,075
Conversion of Class B to Class A common stock	1,339		—		1,184		—		1,075		—
Weighted average effect of dilutive securities:
Employee stock options	134		134		204		204		295		295
RSUs	23		23		5		5		—		—
Shares subject to repurchase	3		3		3		3		4		4
Warrants	—		—		2		2		8		8
Number of shares used for diluted EPS computation	2,166		1,499		1,508		1,398		1,414		1,382
Diluted EPS	$	0.01	$	0.01	$	0.46	$	0.46	$	0.28	$	0.28

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Note 4. Cash and Cash Equivalents, and Marketable Securities

The following table sets forth the cash, cash equivalents and marketable securities for the periods presented (in millions):

	December 31,
	2012		2011
Cash and cash equivalents:
Cash	$	1,513	$	510
Cash equivalents:
Money market funds	871		892
U.S. government securities	—		60
U.S. government agency securities	—		50
Total cash and cash equivalents	2,384		1,512
Marketable securities:
U.S. government securities	5,165		1,415
U.S. government agency securities	2,077		981
Total marketable securities	7,242		2,396
Total cash, cash equivalents and marketable securities	$	9,626	$	3,908

The gross unrealized gains or losses on our marketable securities as of December 31, 2012 and 2011 were not significant. In addition, there were no securities in a continuous loss position for 12 months or longer as of December 31, 2012 and 2011.

The following table classifies our marketable securities by contractual maturities: (in millions):

	December 31,
	2012		2011
Due in one year	$	4,815	$	1,964
Due in one to two years	2,427		432
Total	$	7,242	$	2,396

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Note 5. Fair Value Measurement

The following table summarizes, for assets or liabilities measured at fair value, the respective fair value and the classification by level of input within the fair value hierarchy (in millions):  

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents:
Money market funds	$	871	$	871	$	—	$	—
Marketable securities:
U.S. government securities	5,165		5,165		—		—
U.S. government agency securities	2,077		2,077		—		—
Total cash equivalents and marketable securities	$	8,113	$	8,113	$	—	$	—
Other current liabilities:
Contingent consideration liability	$	4	$	—	$	—	$	4
Other liabilities:
Derivative financial instrument	$	4	$	—	$	4	$	—

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3
Cash equivalents:
Money market funds	$	892	$	892	—		—
U.S. government securities	60		60		—		—
U.S. government agency securities	50		50		—		—
Total cash equivalents	1,002		1,002		—		—
Marketable securities:
U.S. government securities	1,415		1,415		—		—
U.S. government agency securities	981		981		—		—
Total cash equivalents and marketable securities	$	3,398	$	3,398	$	—	$	—

There was no contingent consideration liability or interest rate swap as of December 31, 2011.

Our Level 2 derivative financial instrument represents our interest rate swap agreement which is valued based on a valuation model using significant inputs derived from or corroborated by observable market data.

We estimate the fair value of our Level 3 contingent consideration liability based on the probability assessment of the earn-out criteria. In developing these estimates, we consider factors not observed in the market and thus this represents a Level 3 measurement. Level 3 instruments are valued based on unobservable inputs that are supported by little or no market activity and reflect our own assumptions in measuring fair value. Our fair value estimate of this liability was $6 million at the date of acquisition. Changes in the fair value of the contingent consideration liability subsequent to the acquisition date, such as changes in the probability assessment and our stock prices, are recognized in earnings in the period when the change in the estimated fair value occurs.

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Note 6. Property and Equipment

Property and equipment consists of the following (in millions):

	December 31,
	2012			2011
Network equipment	$	1,912		$	1,016
Land	36			34
Buildings	594			355
Leasehold improvements	194			120
Computer software, office equipment and other	93			73
Construction in progress	444			327
Total	3,273			1,925
Less: accumulated depreciation	(882		)	(450		)
Property and equipment, net	$	2,391		$	1,475

Depreciation expense on property and equipment was $566 million, $303 million and $129 million during 2012, 2011 and 2010, respectively.

Property and equipment at December 31, 2012 and 2011 includes $1.28 billion and $881 million, respectively, acquired under capital lease agreements of which the majority is included in computer software, office equipment, and other. Accumulated depreciation of property and equipment acquired under these capital leases was $437 million and $210 million at December 31, 2012 and 2011, respectively.

Construction in progress includes costs primarily related to the construction of data centers and equipment located in our data centers in Oregon, North Carolina, and Sweden. Interest capitalized during the years presented was not material.

Note 7. Goodwill and Intangible Assets

The changes in carrying amount of goodwill for the years ended December 31, 2012 and 2011 are as follows (in millions):

Balance as of December 31, 2010	$	37
Goodwill acquired	48
Effect of currency translation adjustment	(3		)
Balance as of December 31, 2011	82
Goodwill acquired	505
Balance as of December 31, 2012	$	587

Intangible assets consist of the following (in millions):

		December 31, 2012							December 31, 2011
	Useful lives from date of acquisitions (in years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizable intangible assets:
Acquired patents	3 - 18	$	684	$	(53	)	$	631	$	51	$	(4	)	$	47
Acquired technology	2 - 10	133		(32		)	101		38		(15		)	23
Tradename and other	2 - 7	94		(25		)	69		23		(13		)	10
Total		$	911	$	(110	)	$	801	$	112	$	(32	)	$	80

Amortization expense of intangible assets for the years ended December 31, 2012, 2011, and 2010 was $78 million, $20 million,

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and $9 million, respectively.

As of December 31, 2012, expected amortization expense for the unamortized acquired intangible assets for the next five years and thereafter is as follows (in millions):

2013	$	126
2014	120
2015	112
2016	102
2017	86
Thereafter	255
Total	$	801

Note 8. Accrued expenses and other current liabilities

The components of accrued expenses and other current liabilities were as follows (in millions):

	December 31,
	2012		2011
Accrued compensation and benefits	$	146	$	57
Other current liabilities	277		239
Total accrued expenses and other current liabilities	$	423	$	296

Note 9. Long-term Debt

In 2011, we entered into an agreement for an unsecured five-year revolving credit facility that allowed us to borrow up to $2.5 billion, with interest payable on borrowed amounts set at LIBOR plus 1.0%. No amounts were drawn down under this agreement as of December 31, 2011. This credit facility was terminated in February 2012.

In February 2012, we entered into a new agreement for an unsecured five-year revolving credit facility that allows us to borrow up to $5 billion for general corporate purposes, with interest payable on the borrowed amounts set at LIBOR plus 1.0%. Origination fees are amortized over the term of the credit facility. Under the terms of the agreement, we are obligated to pay a commitment fee of 0.10% per annum on the daily undrawn balance. As of December 31, 2012, no amounts were drawn down and we were in compliance with the covenants under this credit facility.

Concurrent with our entering into the revolving credit facility in February 2012, we also entered into a bridge credit facility agreement that allows us to borrow up to $3 billion to fund tax withholding and remittance obligations related to the settlement of RSUs in connection with our IPO, with interest payable on the borrowed amounts set at LIBOR plus 1.0% and an additional 0.25% payable on drawn balances outstanding from and after the 180th day of borrowing. Under the terms of the agreement, we are obligated to pay a commitment fee of 0.10% per annum on the daily undrawn balance from and after the 90th day following the date we entered into the bridge facility.

In October 2012, we amended and restated our bridge credit facility, and converted it into a three-year unsecured term loan facility (Amended and Restated Term Loan) that allows us to borrow up to $1.5 billion to fund tax withholding and remittance obligations related to the settlement of RSUs in connection with our IPO with interest payable on the borrowed amounts set at LIBOR plus 1.0%, as well as an annual commitment fee of 0.10% on the daily undrawn balance of the facility. We paid origination fees at closing of the Amended and Restated Term Loan, which fees are being amortized over the term of the facility. On October 25, 2012, we fully drew down the $1.5 billion available on the Amended and Restated Term Loan to fund a portion of the withholding tax liability that arise due to the vesting and settlement of RSUs in October and November 2012. We paid an additional upfront fee of 0.15% of the $1.5 billion drawn down on the funding date, which fee is being amortized over the remaining term of the facility. The amount outstanding under this facility will become due and payable on October 25, 2015. As of December 31, 2012, we were in compliance with the covenants in the Amended and Restated Term Loan.

In connection with the draw down of the Amended and Restated Term Loan, we entered into an interest rate swap agreement with an effective date of October 25, 2012. The notional amount of the interest rate swap agreement is $1.5 billion and the agreement converts the one-month LIBOR rate on the corresponding notional amount of debt to a fixed interest rate of 1.46% to hedge our exposure to interest rate fluctuation. This interest rate swap has a maturity date of October 25, 2015. We have designated the interest rate swap agreement as a qualifying hedging instrument and accounted for it as a cash flow hedge.

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As of December 31, 2012 the change in fair value of this interest rate swap agreement, net of tax was $2 million and is recognized in AOCI with the corresponding fair value of $4 million included in other liabilities on our consolidated balance sheet. For the year ended December 31, 2012, the amount of loss in other comprehensive income reclassified to interest expense was not significant. There were no realized gains or losses on derivative other than those related to the periodic settlement of the interest rate swap.

We estimate that $3 million of derivative losses included in AOCI will be reclassified into earnings within the next 12 months. This amount has been calculated based on the variable interest rate assumptions used in the fair value calculation of the interest rate swap agreement as of December 31, 2012.

Note 10. Commitments and Contingencies

Commitments

Leases

We entered into various capital lease arrangements to obtain property and equipment for our operations. Additionally, on occasion we have purchased property and equipment for which we have subsequently obtained capital financing under sale-leaseback transactions. These agreements are typically for three years except for building leases which are for 15 years, with interest rates ranging from 1% to 13%. The leases are secured by the underlying leased buildings, leasehold improvements, and equipment. We have also entered into various non-cancelable operating lease agreements for certain of our offices, equipment, land and data centers with original lease periods expiring between now and 2027. We are committed to pay a portion of the related actual operating expenses under certain of these lease agreements. Certain of these arrangements have free rent periods or escalating rent payment provisions, and we recognize rent expense under such arrangements on a straight-line basis.

The following is a schedule, by years, of the future minimum lease payments required under non-cancelable capital and operating leases as of December 31, 2012 (in millions):

	Capital Leases			Operating Leases
2013	$	398		$	142
2014	278			128
2015	125			117
2016	20			110
2017	15			102
Thereafter	143			252
Total minimum lease payments	$	979		$	851
Less: amount representing interest and taxes	(123		)
Less: current portion of the present value of minimum lease payments	(365		)
Capital lease obligations, net of current portion	$	491

Operating lease expenses totaled $196 million, $219 million, and $178 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Other contractual commitments

We also have $749 million of non-cancelable contractual commitments as of December 31, 2012, primarily related to equipment and supplies for our data center operations, and, to a lesser extent, construction of our data center sites. The majority of these commitments are due in 2013.

Contingencies

Legal Matters

Beginning on May 22, 2012, multiple putative class actions, derivative actions, and individual actions were filed in state and federal courts in the United States and in other jurisdictions against us, our directors, and/or certain of our officers alleging violation of securities laws or breach of fiduciary duties in connection with our IPO and seeking unspecified damages. We believe these lawsuits are without merit, and we intend to continue to vigorously defend them. On October 4, 2012, on our motion, the vast majority of the cases in the United States, along with multiple cases filed against The NASDAQ OMX Group, Inc. and The Nasdaq Stock Market LLC (collectively referred to herein as NASDAQ) alleging technical and other trading-related errors by NASDAQ in connection with our IPO, were ordered centralized for coordinated or consolidated pre-trial proceedings in the United States District Court for the Southern District of New York.

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In addition, the events surrounding our IPO have become the subject of various government inquiries, and we are cooperating with those inquiries.

In the opinion of management, there was not at least a reasonable possibility we may have incurred a material loss, or a material loss in excess of a recorded accrual, with respect to loss contingencies relating to the matters set forth above. However, the outcome of litigation is inherently uncertain. Therefore, although management considers the likelihood of such an outcome to be remote, if one or more of these legal matters were resolved against us in the same reporting period for amounts in excess of management's expectations, our consolidated financial statements of a particular reporting period could be materially adversely affected.

We are also party to various legal proceedings and claims which arise in the ordinary course of business. Among these pending legal matters, two cases are currently scheduled for trial in the near future:  Summit 6 LLC v. Research in Motion Corporation et al., Case No. 3:11cv00367, is scheduled to begin trial as early as February 19, 2013, in the U.S. District Court for the Northern District of Texas, and Timelines, Inc. v. Facebook, Inc., Case No. 1:2011cv06867, is scheduled to begin trial on April 22, 2013, in the U.S. District Court for the Northern District of Illinois.  In the Summit 6 case, the plaintiffs allege that Facebook infringes certain patents held by the plaintiffs.  In the Timelines case, the plaintiffs allege that Facebook infringes a trademark held by the plaintiffs. In both cases, the plaintiffs are seeking significant monetary damages and equitable relief.

We believe the claims made by the Summit 6 plaintiffs and the Timelines plaintiffs are without merit, and we intend to continue to defend ourselves vigorously in both cases.  Although the outcome of litigation is inherently uncertain, we do not believe the possibility of loss in either of these cases is probable.  We are unable to estimate a range of loss, if any, that could result were there to be an adverse final decision, and we have not accrued a liability for either matter.  If an unfavorable outcome were to occur in the Summit 6 case and/or the Timelines case, it is possible that the impact could be material to our results of operations in the period(s) in which any such outcome becomes probable and estimable.

Indemnifications

In the normal course of business, to facilitate transactions of services and products, we have agreed to indemnify certain parties with respect to certain matters. We have agreed to hold certain parties harmless against losses arising from a breach of representations or covenants, or out of intellectual property infringement or other claims made by third parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, we have entered into indemnification agreements with our officers, directors, and certain employees, and our certificate of incorporation and bylaws contain similar indemnification obligations.

It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, payments made by us under these agreements have not had a material impact on our consolidated financial position, results of operations or cash flows. In our opinion, as of December 31, 2012, there was not at least a reasonable possibility we had incurred a material loss with respect to indemnification of such parties. We have not recorded any liability for costs related to indemnification through December 31, 2012.

Note 11. Stockholders' Equity

Initial Public Offering

In May 2012, we completed our IPO in which we issued and sold 180,000,000 shares of Class A common stock at a public offering price of $38.00 per share and the selling stockholders sold 241,233,615 shares of Class A common stock. We did not receive any proceeds from the sale of shares by the selling stockholders. The total net proceeds received from the IPO were $6.8 billion after deducting underwriting discounts and commissions of $75 million and other offering expenses of approximately $7 million.

Convertible Preferred Stock

Upon the closing of our IPO, all shares of our then-outstanding convertible preferred stock, as shown on the table below, automatically converted into an aggregate of 545,401,443 shares of our Class B common stock.

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The following table summarizes the convertible preferred stock outstanding immediately prior to the conversion into common stock, and the rights and preferences of our respective series as of December 31, 2011 and immediately prior to the conversion into common stock:

	Shares		Aggregate Liquidation Preference		Dividend Per Share Per Annum		Conversion Ratio Per Share
	Authorized	Issued and Outstanding
	(in thousands)	(in thousands)	(in millions)
Series A	134,747	133,055	$	1	$	0.00036875	1.000000
Series B	226,032	224,123	13		0.00456		1.004910
Series C	95,768	91,410	26		0.02297335		1.004909
Series D	67,454	50,591	375		0.593		1.012561
Series E	45,000	44,038	200		0.3633264		1.000000
Total	569,001	543,217	$	615

Common Stock

Our certificate of incorporation authorizes the issuance of Class A common stock and Class B common stock. As of December 31, 2012, we are authorized to issue 5,000,000,000 shares of Class A common stock and 4,141,000,000 shares of Class B common stock, each with a par value of $0.000006 per share. Holders of our Class A common stock and Class B common stock are entitled to dividends when, as and if, declared by our board of directors, subject to the rights of the holders of all classes of stock outstanding having priority rights to dividends. As of December 31, 2012, we did not declare any dividends and our credit facilities contain restrictions on our ability to pay dividends. The holder of each share of Class A common stock is entitled to one vote, while the holder of each share of Class B common stock is entitled to ten votes. Shares of our Class B common stock are convertible into an equivalent number of shares of our Class A common stock and generally convert into shares of our Class A common stock upon transfer. Class A common stock and Class B common stock are referred to as common stock throughout the notes to these financial statements, unless otherwise noted.

Upon the closing of our IPO, an aggregate of 335,943,024 shares of Class B common stock were converted into Class A common stock. As of December 31, 2012, there were 1,671,277,621 shares and 701,427,574 shares of Class A common stock and Class B common stock, respectively, issued and outstanding.

Share-based Compensation Plans

We maintain three share-based employee compensation plans: the 2012 Plan, the 2005 Stock Plan and the 2005 Officers' Stock Plan (collectively, Stock Plans). Our 2012 Plan was approved by our board of directors in January 2012 and adopted by our stockholders in April 2012. The 2012 Plan, effective on May 17, 2012, serves as the successor to our 2005 Stock Plan and provides for the issuance of incentive and nonstatutory stock options, restricted stock awards, stock appreciation rights, RSUs, performance shares and stock bonuses to qualified employees, directors and consultants. No new awards will be issued under the 2005 Stock Plan as of the effective date of the 2012 Plan. Outstanding awards under the 2005 Stock Plan continue to be subject to the terms and conditions of the 2005 Stock Plan. Shares available for grant under the 2005 Stock Plan, which were reserved but not issued or subject to outstanding awards under the 2005 Stock Plan as of the effective date, were added to the reserves of the 2012 Plan.

We have initially reserved 25,000,000 shares of our Class A common stock for issuance under our 2012 Plan. The number of shares reserved for issuance under our 2012 Plan will increase automatically on the first day of January of each of 2013 through 2022 by a number of shares of Class A common stock equal to the lesser of (i) 2.5% of the total outstanding shares of our common stock as of the immediately preceding December 31st or (ii) a number of shares determined by the board of directors. The maximum term for stock options granted under the 2012 Plan may not exceed ten years from the date of grant. Our 2012 Plan will terminate ten years from the date of approval unless it is terminated earlier by our compensation committee.

The 2005 Officers' Stock Plan provides for up to 120,000,000 shares of incentive and nonstatutory stock options to certain of our employees or officers. The 2005 Officers' Stock Plan will terminate ten years after its adoption unless terminated earlier by our compensation committee. Stock options become vested and exercisable at such times and under such conditions as determined by our compensation committee on the date of grant. In November 2005, we issued a nonstatutory stock option to our CEO to purchase 120,000,000 shares of our Class B common stock under the 2005 Officers' Stock Plan. As of December 31, 2012, the option had been partially exercised in respect of 60,000,000 shares with the remainder remaining outstanding and fully vested, and no options were available for future issuance under the 2005 Officers' Stock Plan.

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The following table summarizes the stock option and RSU award activities under the Stock Plans for the year ended December 31, 2012:

			Shares Subject to Options Outstanding							Outstanding RSUs
	Shares Available for Grant(1)		Number of Shares		Weighted Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value(2)		Outstanding RSUs(3)		Weighted Average Grant Date Fair Value
	(in thousands)		(in thousands)				(in years)	(in millions)		(in thousands)
Balance as of December 31, 2011	52,318		258,539		$	0.47	4.38	$	7,360	378,772		$	6.83
Stock options exercised	—		(135,505	)	0.12					—
Stock options forfeited/cancelled	213		(213	)	1.41					—
RSUs granted	(41,252	)	—							41,252		32.60
RSUs settled	—		—							(278,846	)	3.02
Shares withheld related to net share settlement of RSUs	122,757		—							—
RSUs forfeited and cancelled	12,955		—							(12,955	)	20.00
2012 Equity Incentive Plan shares authorized	25,000		—							—
Balance as of December 31, 2012	171,991		122,821		$	0.85	3.79	$	3,166	128,223		$	22.08
Stock options vested and expected to vest as of December 31, 2012			122,791		$	0.85	3.79	$	3,166
Stock options exercisable as of December 31, 2012			113,688		$	0.34	3.53	$	2,989

(1) After excluding 195 thousand restricted stock awards included in the table above, 171,796 thousand shares are available for grant under the Stock Plans as of December 31, 2012.

(2) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the assessed fair value of our common stock as of December 31, 2011 and the closing market price of our common stock as of December 31, 2012.

(3) During the year ended December 31, 201269,196 thousand RSUs were vested and the total grant date fair value of these RSUs vested is $9.14. As of December 31, 2012 and 2011, we have 113,044 thousand and 153,943 thousand of unvested RSUs.

Under net settlement procedures currently applicable to our outstanding RSUs for current and former employees, upon each settlement date, RSUs are withheld to cover the required withholding tax, which is based on the value of the RSU on the settlement date as determined by the closing price of our common stock on the trading day immediately preceding the applicable settlement date. The remaining amounts are delivered to the recipient as shares of our common stock. We settled 279 million of Pre-2011 RSUs in 2012 of which 273 million RSUs were net settled by withholding 123 million shares, which represented the employees' minimum statutory obligation for each such employee's applicable income and other employment taxes and remitted cash totaling of $2.86 billion to the appropriate tax authorities. The amount remitted to the tax authorities for the employees' tax obligation to the tax authorities was reflected as a financing activity within our consolidated statements of cash flows. These shares withheld by us as a result of the net settlement of Pre-2011 RSUs are no longer considered issued and outstanding, thereby reducing our shares outstanding used to calculate earnings per share. These shares are returned to the reserves and are available for future issuance under the 2012 Plan.

We estimate the fair value of stock options granted using the Black-Scholes-Merton single option valuation model, which requires inputs such as expected term, expected volatility and risk-free interest rate. Further, the estimated forfeiture rate of awards also affects the amount of aggregate compensation. These inputs are subjective and generally require significant analysis and judgment to develop.

We estimate the expected term based upon the historical behavior of our employees for employee grants. We estimate expected volatility based on a study of publicly traded industry peer companies. The forfeiture rate is derived primarily from our historical data, and the risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues. Our dividend yield is 0%, since we have not paid, and do not expect to pay, dividends.

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The fair values of employee options granted during 2010 have been estimated as of the date of grant using the following weighted-average assumptions.

	December 31, 2010
Expected term from grant date (in years)	7.15
Risk-free interest rate	1.69%
Expected volatility	0.46
Dividend yield	—

The weighted-average fair value of employee options granted during the year ended December 31, 2010 was $5.26 per share. There were no options granted for the years ended December 31, 2012 and 2011.

The following table summarizes additional information regarding outstanding and exercisable options under the Stock Plans at

December 31, 2012:

	Options Outstanding				Options Exercisable
Exercise Price (Range)	Number of Shares	Weighted- Average Remaining Life	Weighted- Average Exercise Price		Number of Shares	Weighted- Average Exercise Price
	(in thousands)	(in years)			(in thousands)
$0.00 - 0.04	5,381	2.65	$	0.04	5,381	$	0.04
0.06	63,379	2.86	0.06		63,379	0.06
0.10 - 0.18	18,096	3.66	0.15		18,096	0.15
0.29 - 0.33	14,701	4.40	0.31		14,701	0.31
1.78	4,693	5.59	1.78		3,701	1.78
1.85	4,865	6.04	1.85		3,938	1.85
2.95	2,506	6.64	2.95		1,567	2.95
3.23	4,500	6.82	3.23		2,925	3.23
10.39	3,500	7.56	10.39		—	—
15.00	1,200	7.81	15.00		—	—
	122,821	3.79	$	0.85	113,688	$	0.34

The aggregate intrinsic value of the options exercised in the years ended December 31, 2012, 2011, and 2010 was $4.23 billion, $2.38 billion and $492 million, respectively. The total grant date fair value of stock options vested during the years ended December 31, 2012, 2011, and 2010 was $5 million, $6 million and $16 million, respectively.

As of December 31, 2012, there was $2.21 billion of unrecognized share-based compensation expense, of which $1.96 billion is related to RSUs, and $244 million is related to restricted shares and stock options. This unrecognized compensation expense is expected to be recognized over a weighted-average period of approximately three years.

Note 12. Other income (expense), net

The following table presents the detail of other income (expense), net, for the periods presented (in millions):

	Year Ended December 31,
	2012			2011			2010
Interest income	$	14		$	4		$	1
Foreign currency exchange losses, net	(9		)	(29		)	(1		)
Other	2			6			(2		)
Other income (expense), net	$	7		$	(19	)	$	(2	)

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Note 13. Income Taxes

The components of income before provision for income taxes for the years ended December 31, 2012, 2011, and 2010 are as follows (in millions):

	Year Ended December 31,
	2012			2011			2010
Domestic	$	1,062		$	1,819		$	1,027
Foreign	(568		)	(124		)	(19		)
Income before provision for income taxes	$	494		$	1,695		$	1,008

The provision for income taxes consisted of the following (in millions):

	Year Ended December 31,
	2012			2011			2010
Current:
Federal	$	559		$	664		$	325
State	45			60			57
Foreign	22			8			1
Total current tax expense	626			732			383
Deferred:
Federal	(172		)	(34		)	13
State	(6		)	(3		)	6
Foreign	(7		)	—			—
Total deferred tax expense (benefit)	(185		)	(37		)	19
Provision for income taxes	$	441		$	695		$	402

A reconciliation of the U.S. federal statutory income tax rate of 35% to our effective tax rate is as follows (in percentages):

	Year Ended December 31,
	2012		2011		2010
U.S. federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal benefit	6.2		2.2		4.0
Research tax credits	—		(1.0	)	(0.8	)
Share-based compensation	19.2		1.5		0.3
Foreign losses not benefited	26.9		3.3		0.8
Other	2.0		—		0.6
Effective tax rate	89.3	%	41.0	%	39.9	%

Excess tax benefits associated with stock option exercises and other equity awards are credited to stockholders' equity. The income tax benefits resulting from stock awards that were credited to stockholders' equity were $1.03 billion, $433 million and $107 million for the years ended December 31, 2012, 2011, and 2010.

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Our deferred tax assets (liabilities) are as follows (in millions):

	December 31,
	2012			2011
Deferred tax assets:
Net operating loss carryforward	$	10		$	3
Tax credit carryforward	37			9
Share-based compensation	233			79
Accrued expenses and other liabilities	83			58
Other	16			—
Total deferred tax assets	379			149
Less: valuation allowance	(37		)	(9		)
Deferred tax assets, net of valuation allowance	342			140
Deferred tax liabilities:
Depreciation and amortization	(97		)	(69		)
Purchased intangible assets	(92		)	(10		)
Deferred foreign taxes	(15		)	(1		)
Total deferred tax liabilities	(204		)	(80		)
Net deferred tax assets	$	138		$	60

The valuation allowance was approximately $37 million and $9 million as of December 31, 2012 and 2011, respectively, related to state tax credits that we do not believe will ultimately be realized.

As of December 31, 2012, the U.S. federal and state net operating loss carryforwards were approximately $5.83 billion and $7.62 billion, which will expire in 2027 and 2021, respectively, if not utilized. If realized, $2.17 billion of net operating loss carryforwards will be recognized as a benefit through additional paid in capital. We also have state tax credit carryforwards of $181 million, which carry forward indefinitely.

Utilization of our net operating loss and tax credit carryforwards may be subject to substantial annual limitations due to the ownership change limitations provided by the Internal Revenue Code and similar state provisions. Such annual limitations could result in the expiration of the net operating loss and tax credit carryforwards before their utilization. The events that may cause ownership changes include, but are not limited to, a cumulative stock ownership change of greater than 50% over a three-year period.

Our net foreign pretax losses include jurisdictions with both pretax earnings and pretax losses. Our consolidated financial statements provide taxes for all related tax liabilities that would arise upon repatriation of earnings in the foreign jurisdictions where we do not intend to indefinitely reinvest those earnings outside the United States, and the amount of taxes provided for has been insignificant.

The following table reflects changes in the gross unrecognized tax benefits (in millions):

	Year Ended December 31,
	2012			2011			2010
Gross unrecognized tax benefits-beginning of period	$	63		$	18		$	9
Increase related to prior year tax positions	13			5			1
Decreases related to prior year tax positions	(16		)	(2		)	(2		)
Increases related to current year tax positions	104			42			10
Gross unrecognized tax benefits-end of period	$	164		$	63		$	18

During all years presented, we recognized interest and penalties related to unrecognized tax benefits within the provision for income taxes on the consolidated statements of income. For the year ended December 31, 2012, we recognized interest of $3 million and penalties of $1 million. The amount of interest and penalties accrued as of December 31, 2012 and 2011 was $10 million and $6 million, respectively.

If the remaining balance of gross unrecognized tax benefits of $164 million as of December 31, 2012 was realized in a future period, this would result in a tax benefit of $70 million within our provision of income taxes at such time.

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We are subject to taxation in the United States and various other state and foreign jurisdictions. The material jurisdictions in which we are subject to potential examination include the United States and Ireland. We are under examination by the Internal Revenue Service (IRS) for our 2008 through 2010 tax years. We believe that adequate amounts have been reserved for any adjustments that may ultimately result from these examinations and we do not anticipate a significant impact to our gross unrecognized tax benefits within the next 12 months related to these years. Our 2011 and 2012 tax years remain subject to examination by the IRS and all tax years starting in 2008 remain subject to examination in Ireland. We remain subject to possible examinations or are undergoing audits in various other jurisdictions that are not material to our financial statements.

Although the timing of the resolution, settlement, and closure of any audits is highly uncertain, it is reasonably possible that the balance of gross unrecognized tax benefits could significantly change in the next 12 months. However, given the number of years remaining that are subject to examination, we are unable to estimate the full range of possible adjustments to the balance of gross unrecognized tax benefits.

Note 14. Geographical Information

Revenue by geography is based on the billing address of the advertiser or Platform developer. The following table sets forth revenue and property and equipment, net by geographic area (in millions):  

	Year Ended December 31,
	2012		2011		2010
Revenue:
United States	$	2,578	$	2,067	$	1,223
Rest of the world(1)	2,511		1,644		751
Total revenue	$	5,089	$	3,711	$	1,974

(1) No individual country exceeded 10% of our total revenue for any period presented.

	December 31,
	2012		2011
Property and equipment, net:
United States	$	2,110	$	1,444
Rest of the world(1)	281		31
Total property and equipment, net	$	2,391	$	1,475

(1) No individual country exceeded 10% of our total property and equipment, net for any period presented.

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Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer (CEO) and chief financial officer (CFO), has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended (Exchange Act)), as of the end of the period covered by this Annual Report on Form 10-K. Based on such evaluation, our CEO and CFO have concluded that as of December 31, 2012, our disclosure controls and procedures are designed at a reasonable assurance level and are effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission (SEC), and that such information is accumulated and communicated to our management, including our CEO and CFO, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control

There were no changes in our internal control over financial reporting identified in management's evaluation pursuant to Rules 13a-15(d) or 15d-15(d) of the Exchange Act during the period covered by this Annual Report on Form 10-K that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management's Report on Internal Control over Financial Reporting

The Annual Report on Form 10-K does not include a report of management's assessment regarding internal control over financial reporting or an attestation report of our independent registered public accounting firm due to a transition period established by the rules of the SEC for newly public companies.

Limitations on Effectiveness of Controls and Procedures

In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Item 9B. Other Information

None.

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PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required by this item is incorporated by reference to our Proxy Statement for the 2013 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission (SEC) within 120 days of the fiscal year ended December 31, 2012.

Our board of directors has adopted a Code of Business Conduct and Ethics applicable to all officers, directors and employees, which is available on our website (investor.fb.com) under "Corporate Governance." We intend to satisfy the disclosure requirement under Item 5.05 of Form 8-K regarding amendment to, or waiver from, a provision of our Code of Business Conduct and Ethics by posting such information on our website at the address and location specified above.

Item 11. Executive Compensation

The information required by this item is incorporated by reference to our Proxy Statement for the 2013 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2012.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this item is incorporated by reference to our Proxy Statement for the 2013 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2012.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by this item is incorporated by reference to our Proxy Statement for the 2013 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2012.

Item 14. Principal Accounting Fees and Services

The information required by this item is incorporated by reference to our Proxy Statement for the 2013 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2012.

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PART IV

Item 15. Exhibits, Financial Statement Schedules

We have filed the following documents as part of this Form 10-K:

1. Consolidated Financial Statements:

	Page No.
Report of Ernst & Young LLP, Independent Registered Public Accounting Firm	59
Consolidated Balance Sheets	60
Consolidated Statements of Income	61
Consolidated Statements of Comprehensive Income	62
Consolidated Statements of Stockholders' Equity	63
Consolidated Statements of Cash Flows	64
Notes to Consolidated Financial Statements	66

2. Financial Statement Schedules

All schedules have been omitted because they are not required, not applicable, not present in amounts sufficient to require submission of the schedule, or the required information is otherwise included.

3. Exhibits

See the Exhibit Index immediately following the signature page of this Annual Report on Form 10-K.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this Annual Report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Menlo Park, State of California, on this first day of February 2013.

		FACEBOOK, INC.
Date:	February 1, 2013	/S/ MARK ZUCKERBERG
		Mark Zuckerberg
		Chairman and Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints David A. Ebersman and Theodore W. Ullyot, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming that all said attorneys-in-fact and agents, or any of them or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been signed by the following persons on behalf of the Registrant and in the capacities and on the dates indicated:

90

Signature	Title	Date
/S/ MARK ZUCKERBERG	Chairman and Chief Executive Officer (Principal Executive Officer)	February 1, 2013
Mark Zuckerberg
/S/ DAVID A. EBERSMAN	Chief Financial Officer (Principal Financial Officer)	February 1, 2013
David A. Ebersman
/S/ DAVID M. SPILLANE	Chief Accounting Officer (Principal Accounting Officer)	February 1, 2013
David M. Spillane
/s/ Marc L. Andreessen	Director	February 1, 2013
Marc L. Andreessen
/s/ Erskine B. Bowles	Director	February 1, 2013
Erskine B. Bowles
/s/ James W. Breyer	Director	February 1, 2013
James W. Breyer
/s/ Donald E. Graham	Director	February 1, 2013
Donald E. Graham
/s/ Reed Hastings	Director	February 1, 2013
Reed Hastings
/s/ Sheryl K. Sandberg	Director	February 1, 2013
Sheryl K. Sandberg
/s/ Peter A. Thiel	Director	February 1, 2013
Peter A. Thiel

91

EXHIBIT INDEX

Exhibit		Incorporated by Reference				Filed Herewith
Number	Exhibit Description	Form	File No.	Exhibit	Filing Date
3.1	Restated Certificate of Incorporation.	10-Q	001-35551	3.1	July 31, 2012
3.2	Amended and Restated Bylaws.	10-Q	001-35551	3.2	July 31, 2012
4.1	Form of Class A Common Stock Certificate	S-1	333-179287	4.1	February 8, 2012
4.2	Form of Class B Common Stock Certificate	S-8	333-181566	4.4	May 21, 2012
4.3	Sixth Amended and Restated Investors' Rights Agreement, dated December 27, 2010, by and among Registrant and certain security holders of Registrant.	S-1	333-179287	4.2	February 8, 2012
4.4	Amendment No. 1 to Sixth Amended and Restated Investors' Rights Agreement, dated May 1, 2012, by and among Registrant and certain security holders of Registrant.	S-1	333-179287	4.2A	May 3, 2012
4.5	Form of "Type 1" Holder Voting Agreement, between Registrant, Mark Zuckerberg, and certain parties thereto.	S-1	333-179287	4.3	February 8, 2012
4.6	Form of "Type 2" Holder Voting Agreement, between Registrant, Mark Zuckerberg, and certain parties thereto.	S-1	333-179287	4.4	February 8, 2012
4.7	Form of "Type 3" Holder Voting Agreement, between Registrant, Mark Zuckerberg, and certain parties thereto.	S-1	333-179287	4.5	February 8, 2012
10.1+	Form of Indemnification Agreement	S-1	333-179287	10.1	February 8, 2012
10.2(A)+	2005 Stock Plan, as amended					X
10.2(B)+	2005 Stock Plan forms of award agreements	S-1	333-179287	10.2	February 8, 2012
10.3+	2005 Officers' Stock Plan, and amended and restated notice of stock option grant and stock. option agreement	S-1	333-179287	10.3	February 8, 2012
10.4(A)+	2012 Equity Incentive Plan, as amended					X
10.4(B)+	2012 Equity Incentive Plan forms of award agreements	10-Q	001-35551	10.2	July 31, 2012
10.5+	2012 Bonus/Retention Plan					X
10.6+	Amended and Restated Offer Letter, dated January 27, 2012, between Registrant and Mark Zuckerberg.	S-1	333-179287	10.6	February 8, 2012
10.7+	Amended and Restated Employment Agreement, dated January 27, 2012, between Registrant and Sheryl K. Sandberg.	S-1	333-179287	10.7	February 8, 2012
10.8+	Amended and Restated Offer Letter, dated January 27, 2012, between Registrant and David A. Ebersman.	S-1	333-179287	10.8	February 8, 2012

92

10.9+	Amended and Restated Offer Letter, dated January 27, 2012, between Registrant and Mike Schroepfer.	S-1	333-179287	10.9	February 8, 2012
10.10+	Amended and Restated Employment Agreement, dated January 27, 2012, between Registrant and Theodore W. Ullyot.	S-1	333-179287	10.10	February 8, 2012
10.11†	Lease, dated February 7, 2011, between Registrant and Wilson Menlo Park Campus, LLC.	S-1	333-179287	10.11	February 8, 2012
10.12	Conversion Agreement, dated February 19, 2010, between Registrant, Digital Sky Technologies Limited, and DST Global Limited.	S-1	333-179287	10.16	February 8, 2012
10.13	Amendment No. 1 to Conversion Agreement, dated April 30, 2012, between Registrant and Mail.ru Group Limited (f/k/a Digital Sky Technologies Limited), DST Global Limited, DST Global II, L.P, DST Global III, L.P., DST USA Limited, and DST USA II Limited.	S-1	333-179287	10.16A	May 3, 2012
10.14	Amended and Restated Term Loan Agreement, dated as of October 12, 2012, among Facebook, Inc., JPMorgan Chase Bank, N.A., as Administrative Agent, and the lenders party thereto.	8-K	001-35551	10.1	October 15, 2012
10.15	Credit Agreement, dated February 28, 2012, between Registrant, the Lenders party thereto, and JPMorgan Chase Bank, N.A., as Administrative Agent.	S-1	333-179287	10.14	March 7, 2012
10.16	Amendment No. 1 to Credit Agreement, dated as of October 12, 2012, among Facebook, Inc., JPMorgan Chase Bank, N.A., as Administrative Agent, and the lenders party thereto.	8-K	001-35551	10.2	October 15, 2012
21.1	List of subsidiaries.					X
23.1	Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.					X
31.1	Certification of Mark Zuckerberg, Chief Executive Officer, pursuant to Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.					X
31.2	Certification of David A. Ebersman, Chief Financial Officer, pursuant to Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.					X
32.1#	Certification of Mark Zuckerberg, Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.					X
32.2#	Certification of David A. Ebersman, Chief Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.					X
101.INS	XBRL Instance Document.					X
101.SCH	XBRL Taxonomy Extension Schema Document.					X
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.					X

93

101.DEF	XBRL Taxonomy Extension Definition Linkbase Document.	X
101.LAB	XBRL Taxonomy Extension Labels Linkbase Document.	X
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.	X

+ Indicates a management contract or compensatory plan.    

† Portions of exhibit have been granted confidential treatment by the SEC.

# This certification is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended (Exchange Act), or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (Securities Act) or the Exchange Act.

94

EX-10.2(A)

EXHIBIT 10.2(A)

FACEBOOK, INC.

2005 STOCK PLAN

(as amended April 2006)

(as amended July 2006)
(as amended April 2007)
(as amended May 2007)

(as amended July 2007)
(as amended September 2007)
(as amended October 2007)

(as amended December 2007)

(as amended twice in August 2008)

(as amended January 2009)

(as amended March 2009)

(as amended June 2009)
(as amended August 2009)

(as amended in October 2009)

(as amended in November 2009)
(as amended in December 2009)

(as amended in October 2010)

(as amended in December 2010)

(as amended in December 2011)

(as amended in January 2012)

(as amended in December 2012)

1.Purposes of the Plan. The purposes of this 2005 Stock Plan are to attract and retain the best available personnel for positions of substantial responsibility, to provide additional incentive to Employees and Consultants and to promote the success of the Company’s business. Options granted under the Plan may be Incentive Stock Options or Nonstatutory Stock Options, as determined by the Administrator at the time of grant of an option and subject to the applicable provisions of Section 422 of the Code and the regulations and interpretations promulgated thereunder. Stock Purchase Rights and Restricted Stock Units may also be granted under the Plan.

2.    Definitions. As used herein, the following definitions shall apply:

a.    “Administrator” means the Board or its Committee appointed pursuant to Section 4 of the Plan.

b.    “Affiliate” means an entity other than a Subsidiary (as defined below) which, together with the Company, is under common control of a third person or entity.

c.    “Applicable Laws” means the legal requirements relating to the administration of stock option and restricted stock purchase plans, including under applicable U.S. state corporate laws, U.S. federal and applicable state securities laws, other U.S. federal and state laws, the Code, any Stock Exchange rules or regulations and the applicable laws, rules and regulations of any other country or jurisdiction where Awards are granted under the Plan, as such laws, rules, regulations and requirements shall be in place from time to time.

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d.    “Award” means any grant made under this Plan, including any Option, Stock Purchase Right or Restricted Stock Unit.

e.    “Board” means the Board of Directors of the Company.

f.    “Cause” for termination of a Participant’s Continuous Service Status will exist if the Participant is terminated by the Company for any of the following reasons: (i) Participant’s willful failure substantially to perform his or her duties and responsibilities to the Company or deliberate violation of a Company policy; (ii) Participant’s commission of any act of fraud, embezzlement, dishonesty or any other willful misconduct that has caused or is reasonably expected to result in material injury to the Company; (iii) unauthorized use or disclosure by Participant of any proprietary information or trade secrets of the Company or any other party to whom the Participant owes an obligation of nondisclosure as a result of his or her relationship with the Company; or (iv) Participant’s willful breach of any of his or her obligations under any written agreement or covenant with the Company. The determination as to whether a Participant is being terminated for Cause shall be made in good faith by the Company and shall be final and binding on the Participant. The foregoing definition does not in any way limit the Company’s ability to terminate a Participant’s employment or consulting relationship at any time as provided in Section 5(d) below, and the term “Company” will be interpreted to include any Subsidiary, Parent or Affiliate, as appropriate.

g.    “Change of Control” means (1) a sale of all or substantially all of the Company’s assets or (2) any merger, consolidation or other business combination transaction of the Company with or into another corporation, entity or person, other than a transaction in which the holders of at least a majority of the shares of voting capital stock of the Company outstanding immediately prior to such transaction continue to hold (either by such shares remaining outstanding or by their being converted into shares of voting capital stock of the surviving entity) a majority of the total voting power represented by the shares of voting capital stock of the Company (or the surviving entity) outstanding immediately after such transaction; provided, however, that none of the following shall be considered a Change of Control: (a) a merger effected exclusively for the purpose of changing the domicile of the Company, (b) an equity financing in which the Company is the surviving corporation, or (c) a transaction in which the stockholders of the Company immediately prior to the transaction own 50% or more of the voting power of the surviving corporation following the transaction.

h.    “Code” means the Internal Revenue Code of 1986, as amended.

i.    “Committee” means one or more committees or subcommittees of the Board appointed by the Board to administer the Plan in accordance with Section 4 below.

j.    “Common Stock” means the Class B Common Stock of the Company.

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k.    “Company” means Facebook, Inc., a Delaware corporation.

l.    “Consultant” means any person, including an advisor, who is engaged by the Company or any Parent, Subsidiary or Affiliate to render services and is compensated for such services, and any director of the Company whether compensated for such services or not.

m.    “Continuous Service Status” means the absence of any interruption or termination of service as an Employee or Consultant. Continuous Service Status as an Employee or Consultant shall not be considered interrupted in the case of: (i) sick leave; (ii) military leave; (iii) any other leave of absence approved by the Administrator, provided that such leave is for a period of not more than ninety (90) days, unless reemployment upon the expiration of such leave is guaranteed by contract or statute, or unless provided otherwise pursuant to Company policy adopted from time to time; or (iv) in the case of transfers between locations of the Company or between the Company, its Parents, Subsidiaries, Affiliates or their respective successors. A change in status from an Employee to a Consultant or from a Consultant to an Employee will not constitute an interruption of Continuous Service Status.

n.    “Corporate Transaction” means a sale of all or substantially all of the Company’s assets, or a merger, consolidation or other capital reorganization or business combination transaction of the Company with or into another corporation, entity or person, or the direct or indirect acquisition (including by way of a tender or exchange offer) by any person, or persons acting as a group, of beneficial ownership or a right to acquire beneficial ownership of shares representing a majorityof the voting power of the then outstanding shares of capital stock of the Company.

o.    “Director” means a member of the Board.

p.    “Employee” means any person employed by the Company or any Parent, Subsidiary or Affiliate, with the status of employment determined based upon such factors as are deemed appropriate by the Administrator in its discretion, subject to any requirements of the Code or the Applicable Laws. The payment by the Company of a director’s fee to a Director shall not be sufficient to constitute “employment” of such Director by the Company.

q.    “Exchange Act” means the Securities Exchange Act of 1934, as amended.

r.    “Fair Market Value” means, as of any date, the fair market value of the Common Stock, as determined by the Administrator in good faith on such basis as it deems appropriate and applied consistently with respect to Participants. Whenever possible, the determination of Fair Market Value shall be based upon the closing price for the Company’s shares of Class A Common Stock as officially quoted in the composite tape of transactions on the principal national securities exchange on which the Company’s Class A Common Stock is listed or admitted to trading or such other source as the Administrator deems reliable for the applicable date.

s.    “Incentive Stock Option” means an Option intended to qualify as an incentive stock option within the meaning of Section 422 of the Code, as designated in the applicable Option Agreement.

t.    “Listed Security” means any security of the Company that is listed or approved for listing on a national securities exchange or designated or approved for designation as a national market system security on an interdealer quotation system by the Financial Industry Regulatory Authority.

u.    “Named Executive” means any individual who, on the last day of the Company’s fiscal year, is the chief executive officer of the Company (or is acting in such capacity) or among the four most highly compensated officers of the Company (other than the chief executive officer). Such officer status shall be determined pursuant to the executive compensation disclosure rules under the Exchange Act.

v.    “Nonstatutory Stock Option” means an Option not intended to qualify as an Incentive Stock Option, as designated in the applicable Option Agreement.

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w.    “Option” means a stock option granted pursuant to the Plan.

x.    “Option Agreement” means a written document, the form(s) of which shall be approved from time to time by the Administrator, reflecting the terms of an Option granted under the Plan and includes any documents attached to or incorporated into such Option Agreement, including, but not limited to, a notice of stock option grant and a form of exercise notice.

y.    “Option Exchange Program” means a program approved by the Administrator whereby outstanding Options are exchanged for Options with a lower exercise price or are amended to decrease the exercise price as a result of a decline in the Fair Market Value of the Common Stock.

z.    “Optioned Stock” means the Common Stock subject to an Option.

aa.    “Optionee” means an Employee or Consultant who receives an Option.

bb.    “Parent” means a “parent corporation,” whether now or hereafter existing, as defined in Section 424(e) of the Code, or any successor provision.

cc.    “Participant” means any holder of one or more Awards, or the Shares issuable or issued upon exercise of such Awards, under the Plan.

dd.    “Plan” means this 2005 Stock Plan, as amended from time to time.

ee.    “Reporting Person” means an officer, Director, or greater than ten percent stockholder of the Company within the meaning of Rule 16a-2 under the Exchange Act, who is required to file reports pursuant to Rule 16a-3 under the Exchange Act.

ff.    “Restricted Stock” means Shares of Common Stock acquired pursuant to a grant of a Stock Purchase Right under Section 11 below.

gg.    “Restricted Stock Purchase Agreement” means a written document, the form(s) of which shall be approved from time to time by the Administrator, reflecting the terms of a Stock Purchase Right granted under the Plan and includes any documents attached to such agreement.

hh.    “Restricted Stock Unit” means the grant of a right to have Shares of Common Stock issued pursuant to an Award made under Section 12 below.

ii.    “Restricted Stock Unit Agreement” means a written document, the form(s) of which shall be approved from time to time by the Administrator, reflecting the terms of a Restricted Stock Unit and includes any documents attached to such agreement.

jj.     “Rule 16b-3” means Rule 16b-3 promulgated under the Exchange Act, as amended from time to time, or any successor provision.

kk.    “Share” means a share of the Common Stock, as adjusted in accordance with Section 15 of the Plan.

ll.    “Stock Exchange” means any stock exchange or consolidated stock price reporting system on which prices for the Common Stock are quoted at any given time.

mm.    “Stock Purchase Right” means the right to purchase Common Stock pursuant to Section 11 below.

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nn.    “Subsidiary” means a “subsidiary corporation,” whether now or hereafter existing, as defined in Section 424(f) of the Code, or any successor provision.

oo.    “Ten Percent Holder” means a person who owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary.

3.    Stock Subject to the Plan. Subject to the provisions of Section 15 of the Plan, the maximum aggregate number of Shares that may be sold under the Plan is 971,314,985 Shares of Common Stock. The Shares may be authorized, but unissued, or reacquired Common Stock. If an award should expire or become unexercisable for any reason without having been exercised in full, or is surrendered pursuant to an Option Exchange Program, the unpurchased Shares that were subject thereto shall, unless the Plan shall have been terminated, become available for future grant under the Plan. In addition, any Shares of Common Stock which are retained by the Company upon exercise of an award in order to satisfy the exercise or purchase price for such award or any withholding taxes due with respect to such exercise or purchase shall be treated as not issued and shall continue to be available under the Plan. Shares issued under the Plan and later repurchased by the Company pursuant to any repurchase right which the Company may have shall be available for future grant under the Plan; provided, however, that no more than 971,314,985 shares may be granted under the Plan pursuant to Incentive Stock Options.

4.    Administration of the Plan.

a.    General. The Plan shall be administered by the Board or a Committee, or a combination thereof, as determined by the Board. The Plan may be administered by different administrative bodies with respect to different classes of Participants and, if permitted by the Applicable Laws, the Board may authorize one or more officers to make awards under the Plan.

b.    Committee Composition. If a Committee has been appointed pursuant to this Section 4, such Committee shall continue to serve in its designated capacity until otherwise directed by the Board. From time to time the Board may increase the size of any Committee and appoint additional members thereof, remove members (with or without cause) and appoint new members in substitution therefor, fill vacancies (however caused) and remove all members of a Committee and thereafter directly administer the Plan, all to the extent permitted by the Applicable Laws and, in the case of a Committee administering the Plan in accordance with the requirements of Rule 16b-3 or Section 162(m) of the Code, to the extent permitted or required by such provisions. The Committee shall in all events conform to any requirements of the Applicable Laws.

c.    Powers of the Administrator. Subject to the provisions of the Plan and in the case of a Committee, the specific duties delegated by the Board to such Committee, the Administrator shall have the authority, in its discretion:

(i)     to determine the Fair Market Value of the Common Stock (which determination shall be final, binding and conclusive for all purposes), in accordance with Section 2.r. of the Plan and to interpret 2.r of the Plan in connection with circumstances that impact the Fair Market Value, provided that such determination and interpretation shall be applied consistently with respect to Participants under the Plan;

(ii)     to select the Employees and Consultants to whom Plan awards may from time to time be granted;

(iii)    to determine whether and to what extent Plan awards are granted;

(iv)    to determine the number of Shares of Common Stock to be covered by each award granted;

(v)    to approve the form(s) of agreement(s) used under the Plan;

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(vi)    to determine the terms and conditions, not inconsistent with the terms of the Plan, of any award granted hereunder, which terms and conditions include but are not limited to the exercise or purchase price, the time or times when awards may be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture restrictions, any pro rata adjustment to vesting as a result of a Participant’s transitioning from full- to part-time service (or vice versa), and any restriction or limitation regarding any Optioned Stock or Award, based in each case on such factors as the Administrator, in its sole discretion, shall determine;

(vii)    to determine whether and under what circumstances an Award may be settled in cash under Section 10(c) instead of Common Stock;

(viii)    to implement an Option Exchange Program on such terms and conditions as the Administrator in its discretion deems appropriate, provided that no amendment or adjustment to an Option that would materially and adversely affect the rights of any Optionee shall be made without the prior written consent of the Optionee;

(ix)    to adjust the vesting of an Award held by an Employee or Consultant as a result of a change in the terms or conditions under which such person is providing services to the Company;

(x)    to construe and interpret the terms of the Plan and Awards, which constructions, interpretations and decisions shall be final and binding on all Participants; and

(xi)    in order to fulfill the purposes of the Plan and without amending the Plan, to modify Awards to Participants who are foreign nationals or employed outside of the United States in order to recognize differences in local law, tax policies or customs.

5.    Eligibility.

(a)    Recipients of Grants. Employees and Consultants may be granted any of the types of Awards provided under the Plan, provided however that Incentive Stock Options may be granted only to Employees (excepting Employees of Affiliates).

(b)    Type of Option. Each Option shall be designated in the Option Agreement as either an Incentive Stock Option or a Nonstatutory Stock Option.

(c)    ISO $100,000 Limitation. Notwithstanding any designation under Section 5(b), to the extent that the aggregate Fair Market Value of Shares with respect to which Options designated as Incentive Stock Options are exercisable for the first time by any Optionee during any calendar year (under all plans of the Company or any Parent or Subsidiary) exceeds $100,000, such excess Options shall be treated as Nonstatutory Stock Options. For purposes of this Section 5(c), Incentive Stock Options shall be taken into account in the order in which they were granted, and the Fair Market Value of the Shares subject to an Incentive Stock Option shall be determined as of the date of the grant of such Option.

(d)    No Employment Rights. The Plan shall not confer upon any Participant any right with respect to continuation of an employment or consulting relationship with the Company, nor shall it interfere in any way with such Participant’s right or the Company’s right to terminate the employment or consulting relationship at any time for any reason.

6.    Term of Plan. The Plan shall become effective upon its adoption by the Board of Directors. It shall continue in effect for a term of ten (10) years unless sooner terminated under Section 17 of the Plan.

7.    Term of Option. The term of each Option shall be the term stated in the Option Agreement; provided that the term shall be no more than ten years from the date of grant thereof or such shorter term as may be provided in the Option Agreement and provided further that, in the case of an Incentive Stock Option granted to a

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person who at the time of such grant is a Ten Percent Holder, the term of the Option shall be five (5) years from the date of grant thereof or such shorter term as may be provided in the Option Agreement.

8.    [Reserved.]

9.    Option Exercise Price and Consideration.

(a)    Exercise Price. The per Share exercise price for the Shares to be issued pursuant to exercise of an Option shall be such price as is determined by the Administrator and set forth in the Option Agreement, but shall be subject to the following:

(i)    In the case of an Incentive Stock Option

(A)    granted to an Employee who at the time of grant is a Ten Percent Holder, the per Share exercise price shall be no less than 110% of the Fair Market Value per Share on the date of grant; or

(B)    granted to any other Employee, the per Share exercise price shall be no less than 100% of the Fair Market Value per Share on the date of grant.

(ii)    In the case of a Nonstatutory Stock Option the per share Exercise Price shall be such price as determined by the Administrator, but shall not be less than 100% of the Fair Market Value on the date of grant unless expressly determined by the Administrator.

(iii)    Notwithstanding the foregoing, Options may be granted with a per Share exercise price other than as required above pursuant to a merger or other corporate transaction.

(b)    Permissible Consideration. The consideration to be paid for the Shares to be issued upon exercise of an Option, including the method of payment, shall be determined by the Administrator (and, in the case of an Incentive Stock Option, shall be determined at the time of grant) and may consist entirely of (1) cash; (2) check; (3) subject to any requirements of the Applicable Laws (including without limitation Section 153 of the Delaware General Corporation Law), delivery of Optionee’s promissory note having such recourse, interest, security and redemption provisions as the Administrator determines to be appropriate after taking into account the potential accounting consequences of permitting an Optionee to deliver a promissory note; (4) cancellation of indebtedness; (5) other Shares that have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the Shares as to which the Option is exercised; (6) if, as of the date of exercise of an Option the Company then is permitting employees to engage in a cashless exercise program involving one or more brokers, through such a program that complies with the Applicable Laws (including without limitation the requirements of Regulation T and other applicable regulations promulgated by the Federal Reserve Board) and that ensures prompt delivery to the Company of the amount required to pay the exercise price and any applicable withholding taxes; or (7) any combination of the foregoing methods of payment. In making its determination as to the type of consideration to accept, the Administrator shall consider if acceptance of such consideration may be reasonably expected to benefit the Company and the Administrator may, in its sole discretion, refuse to accept a particular form of consideration at the time of any Option exercise.

10.    Exercise of Option.

(a)    General.

(i)    Exercisability. Any Option granted hereunder shall be exercisable at such times and under such conditions as determined by the Administrator, consistent with the term of the Plan and reflected in the Option Agreement, including vesting requirements and/or performance criteria with respect to the Company and/or the Optionee.

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(ii)    Leave of Absence. The Administrator shall have the discretion to determine whether and to what extent the vesting of Options shall be tolled during any unpaid leave of absence; provided, however, that in the absence of such determination, vesting of Options shall be tolled during any such unpaid leave (unless otherwise required by the Applicable Laws). In the event of military leave, if required by Applicable Laws, vesting shall continue for the longest period that vesting continues under any other statutory or Company approved leave of absence and, upon a Participant’s returning from military leave (under conditions that would entitle him or her to protection upon such return under the Uniform Services Employment and Reemployment Rights Act), he or she shall be given vesting credit with respect to Options to the same extent as would have applied had the Participant continued to provide services to the Company throughout the leave on the same terms as he or she was providing services immediately prior to such leave.

(iii)    Minimum Exercise Requirements. An Option may not be exercised for a fraction of a Share. The Administrator may require that an Option be exercised as to a minimum number of Shares, provided that such requirement shall not prevent an Optionee from exercising the full number of Shares as to which the Option is then exercisable.

(iv)    Procedures for and Results of Exercise. An Option shall be deemed exercised when written notice of such exercise has been given to the Company in accordance with the terms of the Option by the person entitled to exercise the Option and the Company has received full payment for the Shares with respect to which the Option is exercised. Full payment may, as authorized by the Administrator, consist of any consideration and method of payment allowable under Section 9(b) of the Plan, provided that the Administrator may, in its sole discretion, refuse to accept any form of consideration at the time of any Option exercise.

Exercise of an Option in any manner shall result in a decrease in the number of Shares that thereafter may be available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to which the Option is exercised.

(v)    Rights as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Optioned Stock, notwithstanding the exercise of the Option. No adjustment will be made for a dividend or other right for which the record date is prior to the date the stock certificate is issued, except as provided in Section 15 of the Plan.

(b)    Termination of Employment or Consulting Relationship. Except as otherwise set forth in this Section 10(b), the Administrator shall establish and set forth in the applicable Option Agreement the terms and conditions upon which an Option shall remain exercisable, if at all, following termination of an Optionee’s Continuous Service Status, which provisions may be waived or modified by the Administrator at any time. Unless the Administrator otherwise provides in the Option Agreement, to the extent that the Optionee is not vested in Optioned Stock at the date of termination of his or her Continuous Service Status, or if the Optionee (or other person entitled to exercise the Option) does not exercise the Option to the extent so entitled within the time specified in the Option Agreement or below (as applicable), the Option shall terminate and the Optioned Stock underlying the unexercised portion of the Option shall revert to the Plan. In no event may any Option be exercised after the expiration of the Option term as set forth in the Option Agreement (and subject to Section 7).

The following provisions (1) shall apply to the extent an Option Agreement does not specify the terms and conditions upon which an Option shall terminate upon termination of an Optionee’s Continuous Service Status, and (2) establish the minimum post-termination exercise periods that may be set forth in an Option Agreement:

(i)    Termination other than Upon Disability or Death or for Cause. In the event of termination of Optionee’s Continuous Service Status other than under the circumstances set forth in subsections (ii) through (iv) below, such Optionee may exercise an Option for 30 days following such termination to the extent the Optionee was vested in the Optioned Stock as of the date of such termination. No termination shall be deemed

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to occur and this Section 10(b)(i) shall not apply if (i) the Optionee is a Consultant who becomes an Employee, or (ii) the Optionee is an Employee who becomes a Consultant.

(ii)    Disability of Optionee. In the event of termination of an Optionee’s Continuous Service Status as a result of his or her disability (including a disability within the meaning of Section 22(e)(3) of the Code), such Optionee may exercise an Option at any time within six months following such termination to the extent the Optionee was vested in the Optioned Stock as of the date of such termination.

(iii)    Death of Optionee. In the event of the death of an Optionee during the period of Continuous Service Status since the date of grant of the Option, or within thirty days following termination of Optionee’s Continuous Service Status, the Option may be exercised by Optionee’s estate or by a person who acquired the right to exercise the Option by bequest or inheritance at any time within twelve months following the date of death, but only to the extent the Optionee was vested in the Optioned Stock as of the date of death or, if earlier, the date the Optionee’s Continuous Service Status terminated.

(iv)    Termination for Cause. In the event of termination of an Optionee’s Continuous Service Status for Cause, any Option (including any exercisable portion thereof) held by such Optionee shall immediately terminate in its entirety upon first notification to the Optionee of termination of the Optionee’s Continuous Service Status. If an Optionee’s employment or consulting relationship with the Company is suspended pending an investigation of whether the Optionee shall be terminated for Cause, all the Optionee’s rights under any Option likewise shall be suspended during the investigation period and the Optionee shall have no right to exercise any Option. This Section 10(b)(iv) shall apply with equal effect to vested Shares acquired upon exercise of an Option granted on any date on which the Common Stock is not a Listed Security to a person other than an officer, Director or Consultant, in that the Company shall have the right to repurchase such Shares from the Participant upon the following terms: (A) the repurchase is made within 90 days of termination of the Participant’s Continuous Service Status for Cause at the Fair Market Value of the Shares as of the date of termination, (B) consideration for the repurchase consists of cash or cancellation of purchase money indebtedness, and (C) the repurchase right terminates upon the effective date of the Company’s initial public offering of its Common Stock. With respect to vested Shares issued upon exercise of an Option granted to any officer, Director or Consultant, the Company’s right to repurchase such Shares upon termination of the Participant’s Continuous Service Status for Cause shall be made at the Participant’s original cost for the Shares and shall be effected pursuant to such terms and conditions, and at such time, as the Administrator shall determine. Nothing in this Section 10(b)(iv) shall in any way limit the Company’s right to purchase unvested Shares issued upon exercise of an Option as set forth in the applicable Option Agreement.

(c)    Buyout Provisions. The Administrator may at any time offer to buy out for a payment in cash or Shares an Option previously granted under the Plan based on such terms and conditions as the Administrator shall establish and communicate to the Optionee at the time that such offer is made.

11.    Stock Purchase Rights.

(a)    Rights to Purchase. When the Administrator determines that it will offer Stock Purchase Rights under the Plan, it shall advise the offeree in writing of the terms, conditions and restrictions related to the offer, including the number of Shares that such person shall be entitled to purchase, the price to be paid, and the time within which such person must accept such offer. In the case of a Stock Purchase Right granted prior to the date, if any, on which the Common Stock becomes a Listed Security and if required by the Applicable Laws at that time, the purchase price of Shares subject to such Stock Purchase Rights shall not be less than 85% of the Fair Market Value of the Shares as of the date of the offer, or, in the case of a Ten Percent Holder, the price shall not be less than 100% of the Fair Market Value of the Shares as of the date of the offer. If the Applicable Laws do not impose the requirements set forth in the preceding sentence and with respect to any Stock Purchase Rights granted after the date, if any, on which the Common Stock becomes a Listed Security, the purchase price of Shares subject to Stock Purchase Rights shall be as determined by the Administrator. The offer to purchase Shares subject to Stock Purchase Rights shall be accepted by execution of a Restricted Stock Purchase Agreement in the form determined by the Administrator.

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(b)    Repurchase Option.

(i)    General. Unless the Administrator determines otherwise, the Restricted Stock Purchase Agreement shall grant the Company a repurchase option exercisable upon the voluntary or involuntary termination of the purchaser’s employment with the Company for any reason (including death or disability). Subject to any requirements of the Applicable Laws, the terms of the Company’s repurchase option (including without limitation the price at which, and the consideration for which, it may be exercised, and the events upon which it shall lapse) shall be as determined by the Administrator in its sole discretion and reflected in the Restricted Stock Purchase Agreement.

(ii)    Leave of Absence. The Administrator shall have the discretion to determine whether and to what extent the lapsing of Company repurchase rights shall be tolled during any unpaid leave of absence; provided, however, that in the absence of such determination, such lapsing shall be tolled during any such unpaid leave (unless otherwise required by the Applicable Laws). In the event of military leave, if required by Applicable Laws, the lapsing of Company repurchase rights shall continue for the longest period that vesting or lapse or repurchase rights continues under any other statutory or Company approved leave of absence and, upon a Participant’s returning from military leave (under conditions that would entitle him or her to protection upon such return under the Uniform Services Employment and Reemployment Rights Act), he or she shall be given “vesting” credit with respect to Shares purchased pursuant to the Restricted Stock Purchase Agreement to the same extent as would have applied had the Participant continued to provide services to the Company throughout the leave on the same terms as he or she was providing services immediately prior to such leave.

(iii)    Termination for Cause. In the event of termination of a Participant’s Continuous Service Status for Cause, the Company shall have the right to repurchase from the Participant vested Shares issued upon exercise of a Stock Purchase Right granted to any person other than an officer, Director or Consultant prior to the date, if any, upon which the Common Stock becomes a Listed Security upon the following terms: (A) the repurchase must be made within 90 days of termination of the Participant’s Continuous Service Status for Cause at the Fair Market Value of the Shares as of the date of termination, (B) consideration for the repurchase consists of cash or cancellation of purchase money indebtedness, and (C) the repurchase right terminates upon the effective date of the Company’s initial public offering of its Common Stock. With respect to vested Shares issued upon exercise of a Stock Purchase Right granted to any officer, Director or Consultant, the Company’s right to repurchase such Shares upon termination of such Participant’s Continuous Service Status for Cause shall be made at the Participant’s original cost for the Shares and shall be effected pursuant to such terms and conditions, and at such time, as the Administrator shall determine. Nothing in this Section 11(b)(ii) shall in any way limit the Company’s right to purchase unvested Shares as set forth in the applicable Restricted Stock Purchase Agreement.

(c)    Other Provisions. The Restricted Stock Purchase Agreement shall contain such other terms, provisions and conditions not inconsistent with the Plan as may be determined by the Administrator in its sole discretion. In addition, the provisions of Restricted Stock Purchase Agreements need not be the same with respect to each purchaser.

(d)    Rights as a Stockholder. Once the Stock Purchase Right is exercised, the purchaser shall have the rights equivalent to those of a stockholder, and shall be a stockholder when his or her purchase is entered upon the records of the duly authorized transfer agent of the Company. No adjustment will be made for a dividend or other right for which the record date is prior to the date the Stock Purchase Right is exercised, except as provided in Section 15 of the Plan.

12.    Restricted Stock Units.

(a)    Awards of Restricted Stock Units. A Restricted Stock Unit (“RSU”) is an Award to a Participant covering a number of Shares that at a later date may be settled in cash, or by issuance of those Shares.

(b)    Terms of RSUs. The Administrator will determine the terms of an RSU including, without limitation: (a) the number of Shares subject to the RSU; (b) the time or times during which the RSU will

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vest and may be settled; and (c) the consideration to be distributed on settlement, and the effect of termination of a Participant’s Continuous Service Status on each RSU. Participants may simultaneously hold different RSUs that are subject to different criteria as set forth in respective Restricted Stock Unit Agreements. The Administrator shall have the discretion to determine whether and to what extent vesting shall be tolled during any unpaid leave of absence; provided, however, that in the absence of such determination, such vesting shall be tolled during any such unpaid leave (unless otherwise required by the Applicable Laws). In the event of military leave, if required by Applicable Laws, vesting shall continue for the longest period that vesting continues under any other statutory or Company approved leave of absence and, upon a Participant’s returning from military leave (under conditions that would entitle him or her to protection upon such return under the Uniform Services Employment and Reemployment Rights Act), he or she shall be given “vesting” credit with respect to Shares purchased pursuant to the Restricted Stock Unit Agreement to the same extent as would have applied had the Participant continued to provide services to the Company throughout the leave on the same terms as he or she was providing services immediately prior to such leave.

(c)    Form and Timing of Settlement. Payment of earned RSUs shall be made as soon as practicable after the date(s) determined by the Administrator and set forth in the Restricted Stock Unit Agreement. The Administrator, in its sole discretion, may settle earned RSUs in cash, Shares, or a combination of both.

(d)    Termination of Participant’s Continuous Service Status. Except as may be set forth in the Participant’s Restricted Stock Unit Agreement, vesting ceases on termination of such Participant’s Continuous Service Status (unless determined otherwise by the Administrator).

(e)    Other Provisions. The Restricted Stock Unit Agreement shall contain such other terms, provisions and conditions not inconsistent with the Plan as may be determined by the Administrator in its sole discretion. In addition, the provisions of Restricted Stock Unit Agreements need not be the same with respect to each purchaser.

(f)    Rights as a Stockholder. Once Shares are issued pursuant to the terms of a Restricted Stock Unit Agreement, the Participant shall have the rights equivalent to those of a stockholder, and shall be a stockholder when his or her purchase is entered upon the records of the duly authorized transfer agent of the Company. No adjustment will be made for a dividend or other right for which the record date is prior to the date the Shares are issued, except as provided in Section 15 of the Plan.

13.    Taxes.

(a)    As a condition of the grant, vesting or exercise of an Award, the Participant (or in the case of the Participant’s death, the person to whom the Award passes) shall make such arrangements as the Administrator may require for the satisfaction of any applicable federal, state, local or foreign withholding tax obligations that may arise in connection with such grant, vesting or exercise of the Award or the issuance of Shares. The Company shall not be required to issue any Shares under the Plan until such obligations are satisfied. If the Administrator allows the withholding or surrender of Shares to satisfy a Participant’s tax withholding obligations under this Section 13 (whether pursuant to Section 13(c) or (e), or otherwise), the Administrator shall not allow Shares to be withheld in an amount that exceeds the minimum statutory withholding rates for federal and state tax purposes, including payroll taxes.

(b)    In the case of an Employee and in the absence of any other arrangement, the Employee shall be deemed to have directed the Company to withhold or collect from his or her compensation an amount sufficient to satisfy such tax obligations from the next payroll payment otherwise payable after the date of an exercise or settlement of an Award.

(c)    In the case of an Employee where the next payroll payment is not sufficient to satisfy such tax obligations, with respect to any remaining tax obligations, in the absence of any other arrangement and to the extent permitted under the Applicable Laws, the Participant shall be deemed to have elected to have the Company withhold from the Shares to be issued upon exercise or settlement (as applicable) of the Award that

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number of Shares having a Fair Market Value determined as of the applicable Tax Date (as defined below) equal to the minimum amount required to be withheld.

(d)     For purposes of this Section 13, the Fair Market Value of the Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined under the Applicable Laws (the “Tax Date”) and such Shares will be valued based on the value of the actual trade or, if there is none, the Fair Market Value of the Shares as of the previous trading day.

(e)    If permitted by the Administrator, in its discretion, a Participant may satisfy his or her minimum tax withholding obligations upon exercise or settlement (as applicable) of an Award by surrendering to the Company Shares that have a Fair Market Value determined as of the applicable Tax Date equal to the amount required to be withheld.

(f)    Any election or deemed election by a Participant to have Shares withheld to satisfy tax withholding obligations under Section 13(c) or (e) above shall be irrevocable as to the particular Shares as to which the election is made and shall be subject to the consent or disapproval of the Administrator. Any election by a Participant under Section 13(e) above must be made on or prior to the applicable Tax Date.

(g)    In the event an election to have Shares withheld is made by a Participant and the Tax Date is deferred under Section 83 of the Code because no election is filed under Section 83(b) of the Code, the Participant shall receive the full number of Shares with respect to which the Option or Stock Purchase Right is exercised but such Participant shall be unconditionally obligated to tender back to the Company the proper number of Shares on the Tax Date.

14.    Non-Transferability of Awards.

(a)    General. Except as set forth in this Section 14, Awards may not be sold, pledged, assigned, hypothecated, transferred or disposed of in any manner other than by will or by the laws of descent or distribution, and the Awards and the Shares underlying Awards cannot be the subject of a short position, a “put equivalent position”, or a “call equivalent position” by the Award holder, prior to exercise, as such terms are defined in Rule 16a-1 of the Exchange Act. The designation of a beneficiary by a Participant will not constitute a transfer. An Award may be exercised, during the lifetime of the Participant, only by such Participant or a transferee permitted by this Section 14.

(b)    Limited Transferability Rights. Notwithstanding anything else in this Section 14, the Administrator may in its discretion grant Nonstatutory Stock Options or RSUs that may be transferred by instrument to an inter vivos or testamentary trust in which the Options or RSUs are to be passed to beneficiaries upon the death of the trustor (settlor), to a guardian on the disability or to an executor on death of the Nonstatutory Stock Option or RSU holder, or by gift or pursuant to domestic relations orders to the Participant’s “Immediate Family” (as defined below), provided that any such permitted transferees may not (i) further transfer RSUs to any parties and (ii) may not transfer Nonstatutory Stock Options to parties other than the Participant or the Participant’s Immediate Family (transfers between a Participant’s Immediate Family and between a Participant’s Immediate Family and Participant are permitted). For the sake of clarification, multiple transfers of Nonstatutory Stock Options may be made, by gift or pursuant to domestic relations orders, back and forth between Immediate Family and a Participant pursuant to this Section 14(b). “Immediate Family” means any child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, domestic partner sharing the same household, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law (including adoptive relationships), a trust in which these persons have more than fifty percent of the beneficial interest, a foundation in which these persons (or the Participant) control the management of assets, and any other entity in which these persons (or the Participant) own more than fifty percent of the voting interests.

15.    Adjustments Upon Changes in Capitalization, Merger or Certain Other Transactions.

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(a)    Changes in Capitalization. Subject to any action required under Applicable Laws by the stockholders of the Company, the number of Shares of Common Stock covered by each outstanding Award, the numbers of Shares set forth in Section 3, and the number of Shares of Common Stock that have been authorized for issuance under the Plan but as to which no Awards have yet been granted or that have been returned to the Plan upon cancellation or expiration of an Award, as well as the price per Share of Common Stock covered by each such outstanding Award, shall be proportionately adjusted for any increase or decrease in the number of issued Shares of Common Stock resulting from a stock split, reverse stock split, stock dividend, combination, recapitalization or reclassification of the Common Stock, or any other increase or decrease in the number of issued Shares of Common Stock effected without receipt of consideration by the Company; provided, however, that conversion of any convertible securities of the Company shall not be deemed to have been “effected without receipt of consideration.” Such adjustment shall be made by the Administrator, whose determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issuance by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the number or price of Shares of Common Stock subject to an Award.

(b)    Dissolution or Liquidation. In the event of the dissolution or liquidation of the Company, each Award will terminate immediately prior to the consummation of such action, unless otherwise determined by the Administrator.

(c)    Corporate Transaction. In the event of a Corporate Transaction (including without limitation a Change of Control), each outstanding Award shall be assumed or an equivalent award shall be substituted by such successor corporation or a parent or subsidiary of such successor corporation (the “Successor Corporation”), unless the Successor Corporation does not agree to assume the Award or to substitute an equivalent award, in which case such Award shall terminate upon the consummation of the transaction.

For purposes of this Section 15(c), an Award shall be considered assumed, without limitation, if, at the time of issuance of the stock or other consideration upon a Corporate Transaction or a Change of Control, as the case may be, each holder of an Award would be entitled to receive upon exercise of the Award the same number and kind of shares of stock or the same amount of property, cash or securities as such holder would have been entitled to receive upon the occurrence of the transaction if the holder had been, immediately prior to such transaction, the holder of the number of Shares of Common Stock covered by the Award at such time (after giving effect to any adjustments in the number of Shares covered by the Award as provided for in this Section 15); provided that if such consideration received in the transaction is not solely common stock of the Successor Corporation, the Administrator may, with the consent of the Successor Corporation, provide for the consideration to be received upon exercise of the Award to be solely common stock of the Successor Corporation equal to the Fair Market Value of the per Share consideration received by holders of Common Stock in the transaction.

(d)    Certain Distributions. In the event of any distribution to the Company’s stockholders of securities of any other entity or other assets (other than dividends payable in cash or stock of the Company) without receipt of consideration by the Company, the Administrator may, in its discretion, appropriately adjust the price per Share of Common Stock covered by each outstanding Option or Stock Purchase Right to reflect the effect of such distribution.

16.    Time of Granting Awards. The date of grant of an Award shall, for all purposes, be the date on which the Administrator makes the determination granting such Award, or such other date as is determined by the Administrator, provided that in the case of any Incentive Stock Option, the grant date shall be the later of the date on which the Administrator makes the determination granting such Incentive Stock Option or the date of commencement of the Optionee’s employment relationship with the Company. Notice of the determination shall be given to each Employee or Consultant to whom an Award is so granted within a reasonable time after the date of such grant.

17.    Amendment and Termination of the Plan.

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(a)    Authority to Amend or Terminate. The Board or the Compensation Committee of the Board may at any time amend, alter, suspend or discontinue the Plan, but no amendment, alteration, suspension or discontinuation (other than an adjustment pursuant to Section 15 above) shall be made that would materially and adversely affect the rights of any holder of an Award, without his or her consent. In addition, to the extent necessary and desirable to comply with the Applicable Laws, the Company shall obtain stockholder approval of any Plan amendment in such a manner and to such a degree as required.

(b)    Effect of Amendment or Termination. Except as to amendments which the Administrator has the authority under the Plan to make unilaterally, no amendment or termination of the Plan shall materially and adversely affect Awards already granted, unless mutually agreed otherwise between the holder of such Award and the Administrator, which agreement must be in writing and signed by such holder and the Company.

18.    Conditions Upon Issuance of Shares. Notwithstanding any other provision of the Plan or any agreement entered into by the Company pursuant to the Plan, the Company shall not be obligated, and shall have no liability for failure, to issue or deliver any Shares under the Plan unless such issuance or delivery would comply with the Applicable Laws, with such compliance determined by the Company in consultation with its legal counsel. As a condition to the exercise or settlement of an Award, the Company may require the holder of the Award to represent and warrant at the time of any such exercise that the Shares are being acquired only for investment and without any present intention to sell or distribute such Shares if, in the opinion of counsel for the Company, such a representation is required by law. Shares issued upon exercise of Awards granted prior to the date on which the Common Stock becomes a Listed Security shall be subject to a right of first refusal in favor of the Company pursuant to which the Participant will be required to offer Shares to the Company before selling or transferring them to any third party on such terms and subject to such conditions as is reflected in the applicable agreement for such Award.

19.    Reservation of Shares. The Company, during the term of this Plan, will at all times reserve and keep available such number of Shares as shall be sufficient to satisfy the requirements of the Plan.

20.    Stockholder Approval. If required by the Applicable Laws, continuance of the Plan shall be subject to approval by the stockholders of the Company within twelve (12) months before or after the date the Plan is adopted. Such stockholder approval shall be obtained in the manner and to the degree required under the Applicable Laws.

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EX-10.4(A)

EXHIBIT 10.4(A)

FACEBOOK, INC.

2012 EQUITY INCENTIVE PLAN

(as amended in December 2012)

1.PURPOSE. The purpose of this Plan is to provide incentives to attract, retain and motivate eligible persons whose present and potential contributions are important to the success of the Company, and any Parents and Subsidiaries that exist now or in the future, by offering them an opportunity to participate in the Company’s future performance through the grant of Awards. Capitalized terms not defined elsewhere in the text are defined in Section 27.

2.SHARES SUBJECT TO THE PLAN.

2.1    Number of Shares Available. Subject to Sections 2.6 and 21 and any other applicable provisions hereof, the total number of Shares reserved and available for grant and issuance pursuant to this Plan as of the date of adoption of the Plan by the Board, is 25,000,000Shares plus (i) any reserved shares not issued or subject to outstanding grants under the Company’s 2005 Stock Plan(the “Prior Plan”) on the Effective Date (as defined below), (ii) shares that are subject to stock options or other awards granted under the Prior Plan that cease to be subject to such stock options or other awards by forfeiture or otherwise after the Effective Date, (iii) shares issued under the Prior Plan before or after the Effective Date pursuant to the exercise of stock options that are, after the Effective Date, forfeited, (iv) shares issued under the Prior Plan that are repurchased by the Company at the original issue price and (v) shares that are subject to stock options or other awards under the Prior Plan that are used or withheld to pay the exercise price of an option or to satisfy the tax withholding obligations related to any award.

2.2    Lapsed, Returned Awards. Shares subject to Awards, and Shares issued under the Plan under any Award, will again be available for grant and issuance in connection with subsequent Awards under this Plan to the extent such Shares: (a) are subject to issuance upon exercise of an Option or SAR granted under this Plan but which cease to be subject to the Option or SAR for any reason other than exercise of the Option or SAR; (b) are subject to Awards granted under this Plan that are forfeited or are repurchased by the Company at the original issue price; (c) are subject to Awards granted under this Plan that otherwise terminate without such Shares being issued; or (d) are surrendered pursuant to an Exchange Program. To the extent an Award under the Plan is paid out in cash rather than Shares, such cash payment will not result in reducing the number of Shares available for issuance under the Plan. Shares used or withheld to pay the exercise price of an Award or to satisfy the tax withholding obligations related to an Award will become available for future grant or sale under the Plan. For the avoidance of doubt, Shares that otherwise become available for grant and issuance because of the provisions of this Section 2.2 shall not include Shares subject to Awards that initially became available because of the substitution clause in Section 21.2 hereof.

2.3    Minimum Share Reserve. At all times the Company shall reserve and keep available a sufficient number of Shares as shall be required to satisfy the requirements of all outstanding Awards granted under this Plan.

2.4    Automatic Share Reserve Increase. The number of Shares available for grant and issuance under the Plan shall be increased on January 1, of each of the ten (10) calendar years during the term of the Plan, by the lesser of (i) two and one half percent (2.5%) of the number of Shares issued and outstanding on each December 31 immediately prior to the date of increaseor (ii) such number of Shares determined by the Board.

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2.5    Limitations. No more than 120,000,000 Shares shall be issued pursuant to the exercise of ISOs.

2.6    Adjustment of Shares. If the number of outstanding Shares is changed by a stock dividend, recapitalization, stock split, reverse stock split, subdivision, combination, reclassification or similar change in the capital structure of the Company, without consideration, then (a) the number of Shares reserved for issuance and future grant under the Plan set forth in Section 2.1, (b) the Exercise Prices of and number of Shares subject to outstanding Options and SARs, (c) the number of Shares subject to other outstanding Awards, (d) the maximum number of shares that may be issued as ISOs set forth in Section 2.5, (e) the maximum number of Shares that may be issued to an individual or to a new Employee in any one calendar year set forth in Section 3 and (f) the number of Shares that are granted as Awards to Non-Employee Directors as set forth in Section 12, shall be proportionately adjusted, subject to any required action by the Board or the stockholders of the Company and in compliance with applicable securities laws; provided that fractions of a Share will not be issued.

3.ELIGIBILITY. ISOs may be granted only to Employees. All other Awards may be granted to Employees, Consultants, Directors and Non-Employee Directors of the Company or any Parent or Subsidiary of the Company; provided such Consultants, Directors and Non-Employee Directors render bona fide services not in connection with the offer and sale of securities in a capital-raising transaction. No Participant will be eligible to receive more than 2,500,000 Shares in any calendar year under this Plan pursuant to the grant of Awards except that new Employees of the Company or of a Parent or Subsidiary of the Company (including new Employees who are also officers and directors of the Company or any Parent or Subsidiary of the Company) are eligible to receive up to a maximum of 5,000,000 Shares in the calendar year in which they commence their employment.

4.ADMINISTRATION.

4.1    Committee Composition; Authority. This Plan will be administered by the Committee or by the Board acting as the Committee. Subject to the general purposes, terms and conditions of this Plan, and to the direction of the Board, the Committee will have full power to implement and carry out this Plan, except, however, the Board shall establish the terms for the grant of an Award to Non-Employee Directors. The Committee will have the authority to:

(a)    construe and interpret this Plan, any Award Agreement and any other agreement or document executed pursuant to this Plan;

(b)    prescribe, amend and rescind rules and regulations relating to this Plan or any Award;

(c)    select persons to receive Awards;

(d)    determine the form and terms and conditions, not inconsistent with the terms of the Plan, of any Award granted hereunder. Such terms and conditions include, but are not limited to, the exercise price, the time or times when Awards may vest and be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture restrictions, and any restriction or limitation regarding any Award or the Shares relating thereto, based in each case on such factors as the Committee will determine;

(e)    determine the number of Shares or other consideration subject to Awards;

(f)    determine the Fair Market Value in good faith and interpret the applicable provisions of this Plan and the definition of Fair Market Value in connection with circumstances that impact the Fair Market Value, if necessary;

(g)    determine whether Awards will be granted singly, in combination with, in tandem with, in replacement of, or as alternatives to, other Awards under this Plan or any other incentive or compensation plan of the Company or any Parent or Subsidiary of the Company;

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(h)    grant waivers of Plan or Award conditions;

(i)    determine the vesting, exercisability and payment of Awards;

(j)    correct any defect, supply any omission or reconcile any inconsistency in this Plan, any Award or any Award Agreement;

(k)    determine whether an Award has been earned;

(l)    determine the terms and conditions of any, and to institute any Exchange Program;

(m)    reduce or waive any criteria with respect to Performance Factors;

(n)    adjust Performance Factors to take into account changes in law and accounting or tax rules as the Committee deems necessary or appropriate to reflect the impact of extraordinary or unusual items, events or circumstances to avoid windfalls or hardships provided that such adjustments are consistent with the regulations promulgated under Section 162(m) of the Code with respect to persons whose compensation is subject to Section 162(m) of the Code;

(o)    adopt rules and/or procedures (including the adoption of any subplan under this Plan) relating to the operation and administration of the Plan to accommodate requirements of local law and procedures outside of the United States;

(p)    make all other determinations necessary or advisable for the administration of this Plan; and

(q)    delegate any of the foregoing to a subcommittee consisting of one or more executive officers pursuant to a specific delegation.

4.2    Committee Interpretation and Discretion. Any determination made by the Committee with respect to any Award shall be made in its sole discretion at the time of grant of the Award or, unless in contravention of any express term of the Plan or Award, at any later time, and such determination shall be final and binding on the Company and all persons having an interest in any Award under the Plan. Any dispute regarding the interpretation of the Plan or any Award Agreement shall be submitted by the Participant or Company to the Committee for review. The resolution of such a dispute by the Committee shall be final and binding on the Company and the Participant. The Committee may delegate to one or more executive officers the authority to review and resolve disputes with respect to Awards held by Participants who are not Insiders, and such resolution shall be final and binding on the Company and the Participant.

4.3    Section 162(m) of the Code and Section 16 of the Exchange Act. When necessary or desirable for an Award to qualify as “performance-based compensation” under Section 162(m) of the Code the Committee shall include at least two persons who are “outside directors” (as defined under Section 162(m) of the Code) and at least two (or a majority if more than two then serve on the Committee) such “outside directors” shall approve the grant of such Award and timely determine (as applicable) the Performance Period and any Performance Factors upon which vesting or settlement of any portion of such Award is to be subject. When required by Section 162(m) of the Code, prior to settlement of any such Award at least two (or a majority if more than two then serve on the Committee) such “outside directors” then serving on the Committee shall determine and certify in writing the extent to which such Performance Factors have been timely achieved and the extent to which the Shares subject to such Award have thereby been earned. Awards granted to Participants who are subject to Section 16 of the Exchange Act must be approved by two or more “non-employee directors” (as defined in the regulations promulgated under Section 16 of the Exchange Act). With respect to Participants whose compensation is subject to Section 162(m) of the Code, and provided that such adjustments are consistent with the regulations promulgated under Section 162(m) of the Code, the Committee may adjust the performance goals to account for changes in law and accounting and to make such adjustments as the Committee deems necessary or appropriate to reflect the impact of extraordinary or unusual items, events or circumstances to avoid

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windfalls or hardships, including without limitation (i) restructurings, discontinued operations, extraordinary items, and other unusual or non-recurring charges, (ii) an event either not directly related to the operations of the Company or not within the reasonable control of the Company’s management, or (iii) a change in accounting standards required by generally accepted accounting principles.

4.4    Documentation. The Award Agreement for a given Award, the Plan and any other documents may be delivered to, and accepted by, a Participant or any other person in any manner (including electronic distribution or posting) that meets applicable legal requirements.

5.OPTIONS. The Committee may grant Options to Participants and will determine whether such Options will be Incentive Stock Options within the meaning of the Code (“ISOs”) or Nonqualified Stock Options (“NQSOs”), the number of Shares subject to the Option, the Exercise Price of the Option, the period during which the Option may vest and be exercised, and all other terms and conditions of the Option, subject to the following:

5.1    Option Grant. Each Option granted under this Plan will identify the Option as an ISO or an NQSO. An Option may be, but need not be, awarded upon satisfaction of such Performance Factors during any Performance Period as are set out in advance in the Participant’s individual Award Agreement. If the Option is being earned upon the satisfaction of Performance Factors, then the Committee will: (x) determine the nature, length and starting date of any Performance Period for each Option; and (y) select from among the Performance Factors to be used to measure the performance, if any. Performance Periods may overlap and Participants may participate simultaneously with respect to Options that are subject to different performance goals and other criteria.

5.2    Date of Grant. The date of grant of an Option will be the date on which the Committee makes the determination to grant such Option, or a specified future date. The Award Agreement and a copy of this Plan will be delivered to the Participant within a reasonable time after the granting of the Option.

5.3    Exercise Period. Options may be vested and exercisable within the times or upon the conditions as set forth in the Award Agreement governing such Option; provided, however, that no Option will be exercisable after the expiration of ten (10) years from the date the Option is granted; and provided further that no ISO granted to a person who, at the time the ISO is granted, directly or by attribution owns more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or of any Parent or Subsidiary of the Company (“Ten Percent Stockholder”) will be exercisable after the expiration of five (5) years from the date the ISO is granted. The Committee also may provide for Options to become exercisable at one time or from time to time, periodically or otherwise, in such number of Shares or percentage of Shares as the Committee determines.

5.4    Exercise Price. The Exercise Price of an Option will be determined by the Committee when the Option is granted; provided that: (i) the Exercise Price of an Option will be not less than one hundred percent (100%) of the Fair Market Value of the Shares on the date of grant and (ii) the Exercise Price of any ISO granted to a Ten Percent Stockholder will not be less than one hundred ten percent (110%) of the Fair Market Value of the Shares on the date of grant. Payment for the Shares purchased may be made in accordance with Section 11 and the Award Agreement and in accordance with any procedures established by the Company.

5.5    Method of Exercise. Any Option granted hereunder will be vested and exercisable according to the terms of the Plan and at such times and under such conditions as determined by the Committee and set forth in the Award Agreement. An Option may not be exercised for a fraction of a Share. An Option will be deemed exercised when the Company receives: (i) notice of exercise (in such form as the Committee may specify from time to time) from the person entitled to exercise the Option, and (ii) full payment for the Shares with respect to which the Option is exercised (together with applicable withholding taxes). Full payment may consist of any consideration and method of payment authorized by the Committee and permitted by the Award Agreement and the Plan. Shares issued upon exercise of an Option will be issued in the name of the Participant. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder will exist with respect to the Shares, notwithstanding the exercise of the Option. The Company will issue (or cause to be issued) such Shares promptly after the Option is exercised. No adjustment will be made for a dividend or other right for which the record date is prior to the date the Shares are issued,

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except as provided in Section 2.6 of the Plan. Exercising an Option in any manner will decrease the number of Shares thereafter available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to which the Option is exercised.

5.6    Termination. The exercise of an Option will be subject to the following (except as may be otherwise provided in an Award Agreement):

(a)    If the Participant is Terminated for any reason except for Cause or the Participant’s death or Disability, then the Participant may exercise such Participant’s Options only to the extent that such Options would have been exercisable by the Participant on the Termination Date no later than ninety (90) days after the Termination Date (or such shorter time period orlonger time period not exceeding five (5) years as may be determined by the Committee, with any exercise beyond three (3) months after the Termination Date deemed to be the exercise of an NQSO), but in any event no later than the expiration date of the Options.

(b)    If the Participant is Terminated because of the Participant’s death (or the Participant dies within ninety (90) days after a Termination other than for Cause or because of the Participant’s Disability), then the Participant’s Options may be exercised only to the extent that such Options would have been exercisable by the Participant on the Termination Date and must be exercised by the Participant’s legal representative, or authorized assignee, no later than twelve (12) months after the Termination Date (or such shorter time period not less than six (6) months or longer time period not exceeding five (5) years as may be determined by the Committee), but in any event no later than the expiration date of the Options.

(c)    If the Participant is Terminated because of the Participant’s Disability, then the Participant’s Options may be exercised only to the extent that such Options would have been exercisable by the Participant on the Termination Date and must be exercised by the Participant (or the Participant’s legal representative or authorized assignee) no later than six (6) months after the Termination Date (with any exercise beyond (a) three (3) months after the Termination Date when the Termination is for a Disability that is not a “permanent and total disability” as defined in Section 22(e)(3) of the Code, or (b) twelve (12) months after the Termination Date when the Termination is for a Disability that is a “permanent and total disability” as defined in Section 22(e)(3) of the Code, deemed to be exercise of an NQSO), but in any event no later than the expiration date of the Options.

(d)    If the Participant is terminated for Cause, then Participant’s Options shall expire on such Participant’s Termination Date, or at such later time and on such conditions as are determined by the Committee, but in any no event later than the expiration date of the Options.Unless otherwise provided in the Award Agreement, Cause will have the meaning set forth in the Plan.

5.7    Limitations on Exercise. The Committee may specify a minimum number of Shares that may be purchased on any exercise of an Option, provided that such minimum number will not prevent any Participant from exercising the Option for the full number of Shares for which it is then exercisable.

5.8    Limitations on ISOs. With respect to Awards granted as ISOs, to the extent that the aggregate Fair Market Value of the Shares with respect to which such ISOs are exercisable for the first time by the Participant during any calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds one hundred thousand dollars ($100,000), such Options will be treated as NQSOs. For purposes of this Section 5.8, ISOs will be taken into account in the order in which they were granted. The Fair Market Value of the Shares will be determined as of the time the Option with respect to such Shares is granted. In the event that the Code or the regulations promulgated thereunder are amended after the Effective Date to provide for a different limit on the Fair Market Value of Shares permitted to be subject to ISOs, such different limit will be automatically incorporated herein and will apply to any Options granted after the effective date of such amendment.

5.9    Modification, Extension or Renewal. The Committee may modify, extend or renew outstanding Options and authorize the grant of new Options in substitution therefor, provided that any such action may not, without the written consent of a Participant, impair any of such Participant’s rights under any Option previously granted. Any outstanding ISO that is modified, extended, renewed or otherwise altered will be treated in accordance

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with Section 424(h) of the Code. Subject to Section 18 of this Plan, by written notice to affected Participants, the Committee may reduce the Exercise Price of outstanding Options without the consent of such Participants; provided, however, that the Exercise Price may not be reduced below the Fair Market Value on the date the action is taken to reduce the Exercise Price.

5.10    No Disqualification. Notwithstanding any other provision in this Plan, no term of this Plan relating to ISOs will be interpreted, amended or altered, nor will any discretion or authority granted under this Plan be exercised, so as to disqualify this Plan under Section 422 of the Code or, without the consent of the Participant affected, to disqualify any ISO under Section 422 of the Code.

6.RESTRICTED STOCK AWARDS.

6.1    Awards of Restricted Stock. A Restricted Stock Award is an offer by the Company to sell to a Participant Shares that are subject to restrictions (“Restricted Stock”). The Committee will determine to whom an offer will be made, the number of Shares the Participant may purchase, the Purchase Price, the restrictions under which the Shares will be subject and all other terms and conditions of the Restricted Stock Award, subject to the Plan.

6.2    Restricted Stock Purchase Agreement. All purchases under a Restricted Stock Award will be evidenced by an Award Agreement. Except as may otherwise be provided in an Award Agreement, a Participant accepts a Restricted Stock Award by signing and delivering to the Company an Award Agreement with full payment of the Purchase Price, within thirty (30) days from the date the Award Agreement was delivered to the Participant. If the Participant does not accept such Award within thirty (30) days, then the offer of such Restricted Stock Award will terminate, unless the Committee determines otherwise.

6.3    Purchase Price. The Purchase Price for a Restricted Stock Award will be determined by the Committee and may be less than Fair Market Value on the date the Restricted Stock Award is granted. Payment of the Purchase Price must be made in accordance with Section 11 of the Plan, and the Award Agreement and in accordance with any procedures established by the Company.

6.4    Terms of Restricted Stock Awards. Restricted Stock Awards will be subject to such restrictions as the Committee may impose or are required by law. These restrictions may be based on completion of a specified number of years of service with the Company or upon completion of Performance Factors, if any, during any Performance Period as set out in advance in the Participant’s Award Agreement. Prior to the grant of a Restricted Stock Award, the Committee shall: (a) determine the nature, length and starting date of any Performance Period for the Restricted Stock Award; (b) select from among the Performance Factors to be used to measure performance goals, if any; and (c) determine the number of Shares that may be awarded to the Participant. Performance Periods may overlap and a Participant may participate simultaneously with respect to Restricted Stock Awards that are subject to different Performance Periods and having different performance goals and other criteria.

6.5    Termination of Participant. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such Participant’s Termination Date (unless determined otherwise by the Committee).

7.STOCK BONUS AWARDS.

7.1    Awards of Stock Bonuses. A Stock Bonus Award is an award to an eligible person of Shares for services to be rendered or for past services already rendered to the Company or any Parent or Subsidiary. All Stock Bonus Awards shall be made pursuant to an Award Agreement. No payment from the Participant will be required for Shares awarded pursuant to a Stock Bonus Award.

7.2    Terms of Stock Bonus Awards. The Committee will determine the number of Shares to be awarded to the Participant under a Stock Bonus Award and any restrictions thereon. These restrictions may be based upon completion of a specified number of years of service with the Company or upon satisfaction of performance goals based on Performance Factors during any Performance Period as set out in advance in the Participant’s Stock Bonus Agreement. Prior to the grant of any Stock Bonus Award the Committee shall: (a) determine the nature, length and

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starting date of any Performance Period for the Stock Bonus Award; (b) select from among the Performance Factors to be used to measure performance goals; and (c) determine the number of Shares that may be awarded to the Participant. Performance Periods may overlap and a Participant may participate simultaneously with respect to Stock Bonus Awards that are subject to different Performance Periods and different performance goals and other criteria.

7.3    Form of Payment to Participant. Payment may be made in the form of cash, whole Shares, or a combination thereof, based on the Fair Market Value of the Shares earned under a Stock Bonus Award on the date of payment, as determined in the sole discretion of the Committee.

7.4    Termination of Participation. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such Participant’s Termination Date (unless determined otherwise by the Committee).

8.STOCK APPRECIATION RIGHTS.

8.1    Awards of SARs. A Stock Appreciation Right (“SAR”) is an award to a Participant that may be settled in cash, or Shares (which may consist of Restricted Stock), having a value equal to (a) the difference between the Fair Market Value on the date of exercise over the Exercise Price multiplied by (b) the number of Shares with respect to which the SAR is being settled (subject to any maximum number of Shares that may be issuable as specified in an Award Agreement). All SARs shall be made pursuant to an Award Agreement.

8.2    Terms of SARs. The Committee will determine the terms of each SAR including, without limitation: (a) the number of Shares subject to the SAR; (b) the Exercise Price and the time or times during which the SAR may be settled; (c) the consideration to be distributed on settlement of the SAR; and (d) the effect of the Participant’s Termination on each SAR. The Exercise Price of the SAR will be determined by the Committee when the SAR is granted, and may not be less than Fair Market Value. A SAR may be awarded upon satisfaction of Performance Factors, if any, during any Performance Period as are set out in advance in the Participant’s individual Award Agreement. If the SAR is being earned upon the satisfaction of Performance Factors, then the Committee will: (x) determine the nature, length and starting date of any Performance Period for each SAR; and (y) select from among the Performance Factors to be used to measure the performance, if any. Performance Periods may overlap and Participants may participate simultaneously with respect to SARs that are subject to different Performance Factors and other criteria.

8.3    Exercise Period and Expiration Date. A SAR will be exercisable within the times or upon the occurrence of events determined by the Committee and set forth in the Award Agreement governing such SAR. The SAR Agreement shall set forth the expiration date; provided that no SAR will be exercisable after the expiration of ten (10) years from the date the SAR is granted. The Committee may also provide for SARs to become exercisable at one time or from time to time, periodically or otherwise (including, without limitation, upon the attainment during a Performance Period of performance goals based on Performance Factors), in such number of Shares or percentage of the Shares subject to the SAR as the Committee determines. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such Participant’s Termination Date (unless determined otherwise by the Committee). Notwithstanding the foregoing, the rules of Section 5.6 also will apply to SARs.

8.4    Form of Settlement. Upon exercise of a SAR, a Participant will be entitled to receive payment from the Company in an amount determined by multiplying (i) the difference between the Fair Market Value of a Share on the date of exercise over the Exercise Price; times (ii) the number of Shares with respect to which the SAR is exercised. At the discretion of the Committee, the payment from the Company for the SAR exercise may be in cash, in Shares of equivalent value, or in some combination thereof. The portion of a SAR being settled may be paid currently or on a deferred basis with such interest or dividend equivalent, if any, as the Committee determines, provided that the terms of the SAR and any deferral satisfy the requirements of Section 409A of the Code.

8.5    Termination of Participation. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such Participant’s Termination Date (unless determined otherwise by the Committee).

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9.RESTRICTED STOCK UNITS.

9.1    Awards of Restricted Stock Units. A Restricted Stock Unit (“RSU”) is an award to a Participant covering a number of Shares that may be settled in cash, or by issuance of those Shares (which may consist of Restricted Stock). All RSUs shall be made pursuant to an Award Agreement.

9.2    Terms of RSUs. The Committee will determine the terms of an RSU including, without limitation: (a) the number of Shares subject to the RSU; (b) the time or times during which the RSU may be settled; (c) the consideration to be distributed on settlement; and (d) the effect of the Participant’s Termination on each RSU. An RSU may be awarded upon satisfaction of such performance goals based on Performance Factors during any Performance Period as are set out in advance in the Participant’s Award Agreement. If the RSU is being earned upon satisfaction of Performance Factors, then the Committee will: (x) determine the nature, length and starting date of any Performance Period for the RSU; (y) select from among the Performance Factors to be used to measure the performance, if any; and (z) determine the number of Shares deemed subject to the RSU. Performance Periods may overlap and participants may participate simultaneously with respect to RSUs that are subject to different Performance Periods and different performance goals and other criteria.

9.3    Form and Timing of Settlement. Payment of earned RSUs shall be made as soon as practicable after the date(s) determined by the Committee and set forth in the Award Agreement. The Committee, in its sole discretion, may settle earned RSUs in cash, Shares, or a combination of both. The Committee may also permit a Participant to defer payment under a RSU to a date or dates after the RSU is earned provided that the terms of the RSU and any deferral satisfy the requirements of Section 409A of the Code.

9.4    Termination of Participant. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such Participant’s Termination Date (unless determined otherwise by the Committee).

10.PERFORMANCE AWARDS.

10.1    Performance Awards. A Performance Award is an award to a Participant of a cash bonus or a Performance Share bonus. Grants of Performance Awards shall be made pursuant to an Award Agreement.

10.2    Terms of Performance Awards. The Committee will determine, and each Award Agreement shall set forth, the terms of each award of Performance Award including, without limitation: (a) the amount of any cash bonus; (b) the number of Shares deemed subject to a Performance Share bonus; (c) the Performance Factors and Performance Period that shall determine the time and extent to which each Performance Award shall be settled; (d) the consideration to be distributed on settlement; and (e) the effect of the Participant’s Termination on each Performance Award. In establishing Performance Factors and the Performance Period the Committee will: (x) determine the nature, length and starting date of any Performance Period; and (y) select from among the Performance Factors to be used. Prior to settlement the Committee shall determine the extent to which Performance Awards have been earned. Performance Periods may overlap and Participants may participate simultaneously with respect to Performance Awards that are subject to different Performance Periods and different performance goals and other criteria. No Participant will be eligible to receive more than $10,000,000 in Performance Awards in any calendar year under this Plan.

10.3    Value, Earning and Timing of Performance Shares. Any Performance Share bonus will have an initial value equal to the Fair Market Value of a Share on the date of grant. After the applicable Performance Period has ended, the holder of a Performance Share bonus will be entitled to receive a payout of the number of Shares earned by the Participant over the Performance Period, to be determined as a function of the extent to which the corresponding Performance Factors or other vesting provisions have been achieved. The Committee, in its sole discretion, may pay an earned Performance Share bonus in the form of cash, in Shares (which have an aggregate Fair Market Value equal to the value of the earned Performance Shares at the close of the applicable Performance Period) or in a combination thereof. Performance Share bonuses may also be settled in Restricted Stock.

10.4    Termination of Participant. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such Participant’s Termination Date (unless determined otherwise by the Committee).

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11.PAYMENT FOR SHARE PURCHASES.

Payment from a Participant for Shares purchased pursuant to this Plan may be made in cash or by check or, where expressly approved for the Participant by the Committee and where permitted by law (and to the extent not otherwise set forth in the applicable Award Agreement):

(a)    by cancellation of indebtedness of the Company to the Participant;

(b)    by surrender of shares of the Company held by the Participant that have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the Shares as to which said Award will be exercised or settled;

(c)    by waiver of compensation due or accrued to the Participant for services rendered or to be rendered to the Company or a Parent or Subsidiary of the Company;

(d)    by consideration received by the Company pursuant to a broker-assisted or other form of cashless exercise program implemented by the Company in connection with the Plan;

(e)    by any combination of the foregoing; or

(f)    by any other method of payment as is permitted by applicable law.

12.GRANTS TO NON-EMPLOYEE DIRECTORS.

12.1    Types of Awards. Non-Employee Directors are eligible to receive any type of Award offered under this Plan except ISOs. Awards pursuant to this Section 12 may be automatically made pursuant to policy adopted by the Board, or made from time to time as determined in the discretion of the Board.

12.2    Eligibility. Awards pursuant to this Section 12 shall be granted only to Non-Employee Directors. A Non-Employee Director who is elected or re-elected as a member of the Board will be eligible to receive an Award under this Section 12.

12.3    Vesting, Exercisability and Settlement. Except as set forth in Section 21, Awards shall vest, become exercisable and be settled as determined by the Board. With respect to Options and SARs, the exercise price granted to Non-Employee Directors shall not be less than the Fair Market Value of the Shares at the time that such Option or SAR is granted.

12.4    Election to receive Awards in Lieu of Cash. A Non-Employee Director may elect to receive his or her annual retainer payments and/or meeting fees from the Company in the form of cash or Awards or a combination thereof, as determined by the Committee. Such Awards shall be issued under the Plan. An election under this Section 12.4 shall be filed with the Company on the form prescribed by the Company.

13.WITHHOLDING TAXES.

13.1    Withholding Generally. Whenever Shares are to be issued in satisfaction of Awards granted under this Plan, the Company may require the Participant to remit to the Company, or to the Parent or Subsidiary employing the Participant, an amount sufficient to satisfy applicable U.S. federal, state, local and international withholding tax requirements or any other tax liability legally due from the Participant prior to the delivery of Shares pursuant to exercise or settlement of any Award. Whenever payments in satisfaction of Awards granted under this Plan are to be made in cash, such payment will be net of an amount sufficient to satisfy applicable U.S. federal, state, local and international withholding tax requirements or any other tax liability legally due from the Participant. The Fair Market Value of the Shares will be determined as of the date that the taxes are required to be withheld and such Shares will be valued based on the value of the actual trade or, if there is none, the Fair Market Value of the Shares as of the previous trading day.

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13.2    Stock Withholding. The Committee, in its sole discretion and pursuant to such procedures as it may specify from time to time and to limitations of local law, may require or permit a Participant to satisfy such tax withholding obligation or any other tax liability legally due from the Participant, in whole or in part by (without limitation) (i) paying cash, (ii) electing to have the Company withhold otherwise deliverable cash or Shares having a Fair Market Value equal to the minimum statutory amount required to be withheld, or (iii) delivering to the Company already-owned Shares having a Fair Market Value equal to the minimum amount required to be withheld.

14.TRANSFERABILITY.

14.1    Transfer Generally. Unless determined otherwise by the Committee or pursuant to Section 14.2, an Award may not be sold, pledged, assigned, hypothecated, transferred, or disposed of in any manner other than by will or by the laws of descent or distribution. If the Committee makes an Award transferable, including, without limitation, by instrument to an inter vivos or testamentary trust in which the Awards are to be passed to beneficiaries upon the death of the trustor (settlor) or by gift to a Permitted Transferee, such Award will contain such additional terms and conditions as the Committee deems appropriate. All Awards shall be exercisable: (i) during the Participant’s lifetime only by (A) the Participant, or (B) the Participant’s guardian or legal representative; (ii) after the Participant’s death, by the legal representative of the Participant’s heirs or legatees; and (iii) in the case of all awards except ISOs, by a Permitted Transferee.

14.2    Award Transfer Program. Notwithstanding any contrary provision of the Plan, the Committee shall have all discretion and authority to determine and implement the terms and conditions of any Award Transfer Program instituted pursuant to this Section 14.2 and shall have the authority to amend the terms of any Award participating, or otherwise eligible to participate in, the Award Transfer Program, including (but not limited to) the authority to (i) amend (including to extend) the expiration date, post-termination exercise period and/or forfeiture conditions of any such Award, (ii) amend or remove any provisions of the Award relating to the Award holder’s continued service to the Company, (iii) amend the permissible payment methods with respect to the exercise or purchase of any such Award, (iv) amend the adjustments to be implemented in the event of changes in the capitalization and other similar events with respect to such Award, and (v) make such other changes to the terms of such Award as the Committee deems necessary or appropriate in its sole discretion.

15.PRIVILEGES OF STOCK OWNERSHIP; RESTRICTIONS ON SHARES.

15.1    Voting and Dividends. No Participant will have any of the rights of a stockholder with respect to any Shares until the Shares are issued to the Participant, except for any dividend equivalent rights permitted by an applicable Award Agreement. After Shares are issued to the Participant, the Participant will be a stockholder and have all the rights of a stockholder with respect to such Shares, including the right to vote and receive all dividends or other distributions made or paid with respect to such Shares; provided, that if such Shares are Restricted Stock, then any new, additional or different securities the Participant may become entitled to receive with respect to such Shares by virtue of a stock dividend, stock split or any other change in the corporate or capital structure of the Company will be subject to the same restrictions as the Restricted Stock; provided, further, that the Participant will have no right to retain such stock dividends or stock distributions with respect to Shares that are repurchased at the Participant’s Purchase Price or Exercise Price, as the case may be, pursuant to Section 15.2.

15.2    Restrictions on Shares. At the discretion of the Committee, the Company may reserve to itself and/or its assignee(s) a right to repurchase (a “Right of Repurchase”) a portion of any or all Unvested Shares held by a Participant following such Participant’s Termination at any time within ninety (90) days after the later of the Participant’s Termination Date and the date the Participant purchases Shares under this Plan, for cash and/or cancellation of purchase money indebtedness, at the Participant’s Purchase Price or Exercise Price, as the case may be.

16.CERTIFICATES. All Shares or other securities whether or not certificated, delivered under this Plan will be subject to such stock transfer orders, legends and other restrictions as the Committee may deem necessary or advisable, including restrictions under any applicable U.S. federal, state or foreign securities law, or any rules, regulations and other requirements of the SEC or any stock exchange or automated quotation system upon which the

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Shares may be listed or quoted and any non-U.S. exchange controls or securities law restrictions to which the Shares are subject.

17.ESCROW; PLEDGE OF SHARES. To enforce any restrictions on a Participant’s Shares, the Committee may require the Participant to deposit all certificates representing Shares, together with stock powers or other instruments of transfer approved by the Committee, appropriately endorsed in blank, with the Company or an agent designated by the Company to hold in escrow until such restrictions have lapsed or terminated, and the Committee may cause a legend or legends referencing such restrictions to be placed on the certificates. Any Participant who is permitted to execute a promissory note as partial or full consideration for the purchase of Shares under this Plan will be required to pledge and deposit with the Company all or part of the Shares so purchased as collateral to secure the payment of the Participant’s obligation to the Company under the promissory note; provided, however, that the Committee may require or accept other or additional forms of collateral to secure the payment of such obligation and, in any event, the Company will have full recourse against the Participant under the promissory note notwithstanding any pledge of the Participant’s Shares or other collateral. In connection with any pledge of the Shares, the Participant will be required to execute and deliver a written pledge agreement in such form as the Committee will from time to time approve. The Shares purchased with the promissory note may be released from the pledge on a pro rata basis as the promissory note is paid.

18.REPRICING; EXCHANGE AND BUYOUT OF AWARDS. Without prior stockholder approval the Committee may (i) reprice Options or SARS (and where such repricing is a reduction in the Exercise Price of outstanding Options or SARS, the consent of the affected Participants is not required provided written notice is provided to them, notwithstanding any adverse tax consequences to them arising from the repricing), and (ii) with the consent of the respective Participants (unless not required pursuant to Section 5.9 of the Plan), pay cash or issue new Awards in exchange for the surrender and cancellation of any, or all, outstanding Awards.

19.SECURITIES LAW AND OTHER REGULATORY COMPLIANCE. An Award will not be effective unless such Award is in compliance with all applicable U.S. and foreign federal and state securities laws, rules and regulations of any governmental body, and the requirements of any stock exchange or automated quotation system upon which the Shares may then be listed or quoted, as they are in effect on the date of grant of the Award and also on the date of exercise or other issuance. Notwithstanding any other provision in this Plan, the Company will have no obligation to issue or deliver certificates for Shares under this Plan prior to: (a) obtaining any approvals from governmental agencies that the Company determines are necessary or advisable; and/or (b) completion of any registration or other qualification of such Shares under any state or federal or foreign law or ruling of any governmental body that the Company determines to be necessary or advisable. The Company will be under no obligation to register the Shares with the SEC or to effect compliance with the registration, qualification or listing requirements of any foreign or state securities laws, stock exchange or automated quotation system, and the Company will have no liability for any inability or failure to do so.

20.NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Award granted under this Plan will confer or be deemed to confer on any Participant any right to continue in the employ of, or to continue any other relationship with, the Company or any Parent or Subsidiary of the Company or limit in any way the right of the Company or any Parent or Subsidiary of the Company to terminate Participant’s employment or other relationship at any time.

21.CORPORATE TRANSACTIONS.

21.1    Assumption or Replacement of Awards by Successor. In the event of a Corporate Transaction any or all outstanding Awards may be assumed or replaced by the successor corporation, which assumption or replacement shall be binding on all Participants. In the alternative, the successor corporation may substitute equivalent Awards or provide substantially similar consideration to Participants as was provided to stockholders (after taking into account the existing provisions of the Awards). The successor corporation may also issue, in place of outstanding Shares of the Company held by the Participant, substantially similar shares or other property subject to repurchase restrictions no less favorable to the Participant. In the event such successor or acquiring corporation (if any) refuses to assume, convert, replace or substitute Awards, as provided above, pursuant to a Corporate Transaction, then notwithstanding any other provision in this Plan to the contrary, such Awards shall have their vesting accelerate as to

11

all shares subject to such Award (and any applicable right of repurchase fully lapse) immediately prior to the Corporate Transaction unless otherwise determined by the Board and then such Awards will terminate. In addition, in the event such successor or acquiring corporation (if any) refuses to assume, convert, replace or substitute Awards, as provided above, pursuant to a Corporate Transaction, the Committee will notify the Participant in writing or electronically that such Award will be exercisable for a period of time determined by the Committee in its sole discretion, and such Award will terminate upon the expiration of such period. Awards need not be treated similarly in a Corporate Transaction.

21.2    Assumption of Awards by the Company. The Company, from time to time, also may substitute or assume outstanding awards granted by another company, whether in connection with an acquisition of such other company or otherwise, by either; (a) granting an Award under this Plan in substitution of such other company’s award; or (b) assuming such award as if it had been granted under this Plan if the terms of such assumed award could be applied to an Award granted under this Plan. Such substitution or assumption will be permissible if the holder of the substituted or assumed award would have been eligible to be granted an Award under this Plan if the other company had applied the rules of this Plan to such grant. In the event the Company assumes an award granted by another company, the terms and conditions of such award will remain unchanged (except that the Purchase Price or the Exercise Price, as the case may be, and the number and nature of Shares issuable upon exercise or settlement of any such Award will be adjusted appropriately pursuant to Section 424(a) of the Code). In the event the Company elects to grant a new Option in substitution rather than assuming an existing option, such new Option may be granted with a similarly adjusted Exercise Price.

21.3    Non-Employee Directors’ Awards. Notwithstanding any provision to the contrary herein, in the event of a Corporate Transaction, the vesting of all Awards granted to Non-Employee Directors shall accelerate and such Awards shall become exercisable (as applicable) in full prior to the consummation of such event at such times and on such conditions as the Committee determines.

22.ADOPTION AND STOCKHOLDER APPROVAL. This Plan shall be submitted for the approval of the Company’s stockholders, consistent with applicable laws, within twelve (12) months before or after the date this Plan is adopted by the Board.

23.TERM OF PLAN/GOVERNING LAW. Unless earlier terminated as provided herein, this Plan will become effective on the Effective Date and will terminate ten (10) years from the date this Plan is adopted by the Board. This Plan and all Awards granted hereunder shall be governed by and construed in accordance with the laws of the State of Delaware.

24.AMENDMENT OR TERMINATION OF PLAN. The Board may at any time terminate or amend this Plan in any respect, including, without limitation, amendment of any form of Award Agreement or instrument to be executed pursuant to this Plan; provided, however, that the Board will not, without the approval of the stockholders of the Company, amend this Plan in any manner that requires such stockholder approval; provided further, that a Participant’s Award shall be governed by the version of this Plan then in effect at the time such Award was granted.

25.NONEXCLUSIVITY OF THE PLAN. Neither the adoption of this Plan by the Board, the submission of this Plan to the stockholders of the Company for approval, nor any provision of this Plan will be construed as creating any limitations on the power of the Board to adopt such additional compensation arrangements as it may deem desirable, including, without limitation, the granting of stock awards and bonuses otherwise than under this Plan, and such arrangements may be either generally applicable or applicable only in specific cases.

26.INSIDER TRADING POLICY. Each Participant who receives an Award shall comply with any policy adopted by the Company from time to time covering transactions in the Company’s securities by Employees, officers and/or directors of the Company.

27.DEFINITIONS. As used in this Plan, and except as elsewhere defined herein, the following terms will have the following meanings:

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“Award” means any award under the Plan, including any Option, Restricted Stock, Stock Bonus, Stock Appreciation Right, Restricted Stock Unit or award of Performance Shares.

“Award Agreement” means, with respect to each Award, the written or electronic agreement between the Company and the Participant setting forth the terms and conditions of the Award, which shall be in substantially a form (which need not be the same for each Participant) that the Committee has from time to time approved, and will comply with and be subject to the terms and conditions of this Plan.

“Award Transfer Program” means any program instituted by the Committee which would permit Participants the opportunity to transfer any outstanding Awards to a financial institution or other person or entity approved by the Committee.

“Board” means the Board of Directors of the Company.

“Cause” means (i) Participant’s willful failure substantially to perform his or her duties and responsibilities to the Company or deliberate violation of a Company policy; (ii) Participant’s commission of any act of fraud, embezzlement, dishonesty or any other willful misconduct that has caused or is reasonably expected to result in material injury to the Company; (iii) unauthorized use or disclosure by Participant of any proprietary information or trade secrets of the Company or any other party to whom the Participant owes an obligation of nondisclosure as a result of his or her relationship with the Company; or (iv) Participant’s willful breach of any of his or her obligations under any written agreement or covenant with the Company. The determination as to whether a Participant is being terminated for Cause shall be made in good faith by the Company and shall be final and binding on the Participant. The foregoing definition does not in any way limit the Company’s ability to terminate a Participant’s employment or consulting relationship at any time as provided in Section 20 above, and the term “Company” will be interpreted to include any Subsidiary or Parent, as appropriate.

“Code” means the United States Internal Revenue Code of 1986, as amended, and the regulations promulgated thereunder.

“Committee” means the Compensation Committee of the Board or those persons to whom administration of the Plan, or part of the Plan, has been delegated as permitted by law.

“Common Stock” means the Class A Common Stock of the Company.

“Company” means Facebook, Inc., or any successor corporation.

“Consultant” means any person, including an advisor or independent contractor, engaged by the Company or a Parent or Subsidiary to render services to such entity.

“Corporate Transaction” means the occurrence of any of the following events: (i) any “person” (as such term is used in Sections 13(d) and 14(d) of the Exchange Act) becomes the “beneficial owner” (as defined in Rule 13d-3 of the Exchange Act), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the total voting power represented by the Company’s then-outstanding voting securities; (ii) the consummation of the sale or disposition by the Company of all or substantially all of the Company’s assets; (iii) the consummation of a merger or consolidation of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or its parent) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity or its parent outstanding immediately after such merger or consolidation or (iv) any other transaction which qualifies as a “corporate transaction” under Section 424(a) of the Code wherein the stockholders of the Company give up all of their equity interest in the Company (except for the acquisition, sale or transfer of all or substantially all of the outstanding shares of the Company).

“Director” means a member of the Board.

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“Disability” means in the case of incentive stock options, total and permanent disability as defined in Section 22(e)(3) of the Code and in the case of other Awards, that the Participant is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment that can be expected to result in death or can be expected to last for a continuous period of not less than 12 months.

“Effective Date” means the day immediately prior to the date of the underwritten initial public offering of the Company’s Common Stock pursuant to a registration statement that is declared effective by the SEC.

“Employee” means any person, including Officers and Directors, employed by the Company or any Parent or Subsidiary of the Company. Neither service as a Director nor payment of a director’s fee by the Company will be sufficient to constitute “employment” by the Company.

“Exchange Act” means the United States Securities Exchange Act of 1934, as amended.

“Exchange Program” means a program pursuant to which outstanding Awards are surrendered, cancelled or exchanged for cash, the same type of Award or a different Award (or combination thereof).

“Exercise Price” means, with respect to an Option, the price at which a holder may purchase the Shares issuable upon exercise of an Option and with respect to a SAR, the price at which the SAR is granted to the holder thereof.

“Fair Market Value” means, as of any date, the value of a share of the Company’s Common Stock determined as follows:

(a)    if such Common Stock is publicly traded and is then listed on a national securities exchange, the closing price on the date of determination on the principal national securities exchange on which the Common Stock is listed or admitted to trading as officially quoted in the composite tape of transactions on such exchange or such other source as the Committee deems reliable for the applicable date;

(b)    if such Common Stock is publicly traded but is neither listed nor admitted to trading on a national securities exchange, the average of the closing bid and asked prices on the date of determination as reported in The Wall Street Journal or such other source as the Committee deems reliable;

(c)    in the case of an Option or SAR grant made on the Effective Date, the price per share at which shares of the Company’s Common Stock are initially offered for sale to the public by the Company’s underwriters in the initial public offering of the Company’s Common Stock pursuant to a registration statement filed with the SEC under the Securities Act; or

(d)    if none of the foregoing is applicable, by the Board or the Committee in good faith.

“Insider” means an officer or director of the Company or any other person whose transactions in the Company’s Common Stock are subject to Section 16 of the Exchange Act.

“Non-Employee Director” means a Director who is not an Employee of the Company or any Parent or Subsidiary.

“Option” means an award of an option to purchase Shares pursuant to Section 5.

“Parent” means any corporation (other than the Company) in an unbroken chain of corporations ending with the Company if each of such corporations other than the Company owns stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain.

“Participant” means a person who holds an Award under this Plan.

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“Performance Award” means cash or stock granted pursuant to Section 10 or Section 12 of the Plan.

“Performance Factors” means any of the factors selected by the Committee and specified in an Award Agreement, from among the following objective measures, either individually, alternatively or in any combination, applied to the Company as a whole or any business unit or Subsidiary, either individually, alternatively, or in any combination, on a GAAP or non-GAAP basis, and measured, to the extent applicable on an absolute basis or relative to a pre-established target, to determine whether the performance goals established by the Committee with respect to applicable Awards have been satisfied:

• (a)    Profit Before Tax;

• (b)    Billings;

• (c)    Revenue;

• (d)    Net revenue;

• (e)    Earnings (which may include earnings before interest and taxes, earnings before taxes, and net earnings);

• (f)    Operating income;

• (g)    Operating margin;

• (h)    Operating profit;

• (i)    Controllable operating profit, or net operating profit;

• (j)    Net Profit;

• (k)    Gross margin;

• (l)    Operating expenses or operating expenses as a percentage of revenue;

• (m)    Net income;

• (n)    Earnings per share;

• (o)    Total stockholder return;

• (p)    Market share;

• (q)    Return on assets or net assets;

• (r)    The Company’s stock price;

• (s)    Growth in stockholder value relative to a pre-determined index;

• (t)    Return on equity;

• (u)    Return on invested capital;

• (v)    Cash Flow (including free cash flow or operating cash flows)

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• (w)    Cash conversion cycle;

• (x)    Economic value added;

• (y)    Individual confidential business objectives;

• (z)    Contract awards or backlog;

• (aa)    Overhead or other expense reduction;

• (bb)    Credit rating;

• (cc)    Strategic plan development and implementation;

• (dd)    Succession plan development and implementation;

• (ee)    Improvement in workforce diversity;

• (ff)    Customer indicators;

• (gg)    New product invention or innovation;

• (hh)    Attainment of research and development milestones;

• (ii)    Improvements in productivity;

• (jj)    Bookings;

• (kk)    Attainment of objective operating goals and employee metrics; and

• (ll)    Any other metric that is capable of measurement as determined by the Committee.

The Committee may, in recognition of unusual or non-recurring items such as acquisition-related activities or changes in applicable accounting rules, provide for one or more equitable adjustments (based on objective standards) to the Performance Factors to preserve the Committee’s original intent regarding the Performance Factors at the time of the initial award grant. It is within the sole discretion of the Committee to make or not make any such equitable adjustments.

“Performance Period” means the period of service determined by the Committee, during which years of service or performance is to be measured for the Award.

“Performance Share” means a performance share bonus granted as a Performance Award.

“Permitted Transferee” means any child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law (including adoptive relationships) of the Employee, any person sharing the Employee’s household (other than a tenant or employee), a trust in which these persons (or the Employee) have more than 50% of the beneficial interest, a foundation in which these persons (or the Employee) control the management of assets, and any other entity in which these persons (or the Employee) own more than 50% of the voting interests.

“Plan” means this Facebook, Inc.2012 Equity Incentive Plan.

“Purchase Price” means the price to be paid for Shares acquired under the Plan, other than Shares acquired upon exercise of an Option or SAR.

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“Restricted Stock Award” means an award of Shares pursuant to Section 6 or Section 12 of the Plan, or issued pursuant to the early exercise of an Option.

“Restricted Stock Unit” means an Award granted pursuant to Section 9 or Section 12 of the Plan.

“SEC” means the United States Securities and Exchange Commission.

“Securities Act” means the United States Securities Act of 1933, as amended.

“Shares” means shares of the Company’s Common Stock and the common stock of any successor security.

“Stock Appreciation Right” means an Award granted pursuant to Section 8 or Section 12 of the Plan.

“Stock Bonus” means an Award granted pursuant to Section 7 or Section 12 of the Plan.

“Subsidiary” means any corporation (other than the Company) in an unbroken chain of corporations beginning with the Company if each of the corporations other than the last corporation in the unbroken chain owns stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain.

“Termination” or “Terminated” means, for purposes of this Plan with respect to a Participant, that the Participant has for any reason ceased to provide services as an employee, officer, director, consultant, independent contractor or advisor to the Company or a Parent or Subsidiary of the Company. An employee will not be deemed to have ceased to provide services in the case of (i) sick leave, (ii) military leave, or (iii) any other leave of absence approved by the Committee; provided, that such leave is for a period of not more than 90 days, unless reemployment upon the expiration of such leave is guaranteed by contract or statute or unless provided otherwise pursuant to formal policy adopted from time to time by the Company and issued and promulgated to employees in writing. In the case of any employee on an approved leave of absence, the Committee may make such provisions respecting suspension of vesting of the Award while on leave from the employ of the Company or a Parent or Subsidiary of the Company as it may deem appropriate, except that in no event may an Award be exercised after the expiration of the term set forth in the applicable Award Agreement. In the event of military leave, if required by applicable laws, vesting shall continue for the longest period that vesting continues under any other statutory or Company approved leave of absence and, upon a Participant’s returning from military leave (under conditions that would entitle him or her to protection upon such return under the Uniform Services Employment and Reemployment Rights Act), he or she shall be given vesting credit with respect to Awards to the same extent as would have applied had the Participant continued to provide services to the Company throughout the leave on the same terms as he or she was providing services immediately prior to such leave. An employee shall have terminated employment as of the date he or she ceases to be employed (regardless of whether the termination is in breach of local laws or is later found to be invalid) and employment shall not be extended by any notice period or garden leave mandated by local law. The Committee will have sole discretion to determine whether a Participant has ceased to provide services for purposes of the Plan and the effective date on which the Participant ceased to provide services (the “Termination Date”).

“Unvested Shares” means Shares that have not yet vested or are subject to a right of repurchase in favor of the Company (or any successor thereto).

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EX-10.5

EXHIBIT 10.5

FACEBOOK, INC.

2012 BONUS /RETENTION PLAN

1. Effective Date and Term. This Bonus and Retention Plan (“Plan”) shall be effective as of January 1, 2012, and is effective for calendar year 2012 (the “Eligibility Period”), unless otherwise amended or terminated by Facebook, Inc. (“Facebook” or the “Company”) in accordance with Section 6 of the Plan. The Plan supersedes all prior bonus plans except those set forth in an individual arrangement with an individual employee in which case this Plan shall not apply. Any other such bonus plan is hereby terminated.

2. Administration. The Plan shall be administered by the Compensation Committee of the Board of Directors (the “Plan Administrator”), which shall have the discretionary authority to interpret and administer the Plan and to adopt rules and regulations to implement the Plan, as it deems necessary. In addition, the Plan Administrator hereby delegates to the Company's CFO and the VP of Human Resources (such individuals, the “Executive Administrators” and together with the Plan Administrator, the “Administrators”) the day-to-day implementation and interpretation of the Plan, including the approval of individual payouts under the Plan to employees other than Facebook's executive management team, or “mteam.” Notwithstanding the foregoing, the approval of the Plan Administrator or the Company's Board of Directors shall be required for the approval of the Plan itself and any material amendments to the Plan; determination of the Company Performance Percentage (as defined below) under the Plan; approval of the aggregate payout under the Plan; and approval of individual payouts under the Plan to Facebook's “executive officers” (as determined by the Board of Directors for purposes of Section 16 under the Securities Exchange Act of 1934). Any action that requires the approval of the Executive Administrators must be jointly approved by both the Company's CFO and the VP of Human Resources, and any action that requires the approval of the Executive Administrators may instead also be approved by the Plan Administrator or the Board of Directors. The decisions of the Administrators are final and binding.

3. Eligibility. Participation in the Plan is limited to Full-Time regular and Part-Time regular Facebook employees¹ For purposes of this plan, an Employee includes only individuals that the Company treats as an employee for employment tax purposes. Contractors, interns, co-op and other workers (including any such individuals who are for any reason later re-characterized as employees), are not eligible. who are employed by Facebook on or before December 31, 2012. Participation in the Plan is effective on the later of January 1, 2012 or the day the participant commences as a Full-Time/Part-Time regular employee of Facebook. A participant may be considered ineligible for the Plan at any time and for any reason at the Administrators' discretion regardless of whether he or she remains an employee of the Company. A participant is not eligible for Plan benefits if the participant resigns or is terminated for “Cause” (which for purposes of the Plan means: any lawful reason) any time before the bonus is paid pursuant to Section 5 below. This Plan is intended to compensate individuals for performance as well as encourage employee retention through and until the date the bonus is paid; retention is therefore a key component of Plan eligibility.

4. Determination of Amounts. The Administrators may, in their discretion, determine that any participant will be eligible for a semi-annual cash bonus that is paid based on the following formula and definitions.

The Executive Administrators have the sole and absolute discretion to determine the level of achievement and the amounts as described herein (provided that any determinations in respect of Facebook's “executive officers” shall be made by the Plan Administrator):

¹ For purposes of this plan, an Employee includes only individuals that the Company treats as an employee for employment tax purposes. Contractors, interns, co-op and other workers (including any such individuals who are for any reason later re-characterized as employees), are not eligible.

NON-SALES INCENTIVE PLAN EMPLOYEES:

Base Eligible Earnings x Corporate Bonus Percentage x Individual Performance Percentage x Company Performance Percentage.

SALES INCENTIVE PLAN EMPLOYEES:

Base Eligible Earnings x Corporate Bonus Percentage x (Company Performance Percentage - 100%).

DEFINITIONS:

a) Base Eligible Earnings means the sum of all base wages as determined by the Company (including overtime, retro pay, money paid during a leave of absence by the Company, personal time off (PTO) used during the period and holiday pay as applicable) that Facebook paid the participant during the semi-annual Eligibility Period excluding bonuses, stock gains, commissions, relocation amounts, accrued but unused PTO, expense reimbursements, or benefits.

b) Corporate Bonus Percentage means the percentage of a participant's Base Annual Wage as established by the Executive Administrators for a participant's position (provided that the Corporate Bonus Percentage for mteam members shall be established by the Plan Administrator).

c) Individual Performance Percentage is tied to the performance assessments, as determined by the Company, measuring the amount of success a participant has achieved against his or her Individual Performance Objectives for the semi-annual performance period.

d) Company Performance Percentage means the amount of success the Company has achieved based on the Company's priorities and other factors deemed appropriate for the semi-annual performance period in the sole discretion and judgment of the Plan Administrator.

5. Payment of Bonuses. Payment of each semi-annual cash bonus (if any) shall be made by no later than September 15, 2012 for the first semi-annual performance period of the year and March 15, 2013 for the second semi-annual performance period of the year. A participant must be employed by the Company at the time the bonus payment is made in order to receive such payment unless local law or a written agreement between the participant and the Company provides otherwise or the Company terminates the participant without Cause (as defined above) prior to the payment of the bonus. If the Company terminates the participant without Cause prior to the end of a semi-annual performance period, such participant shall receive a bonus based on the participant's Base Eligible Earnings for the period.

6. Modification or Termination of the Plan. The Company reserves the right to modify, suspend or terminate all or any portion of this Plan at any time, provided that any material modification to the Plan shall be approved by the Plan Administrator.

7. Benefits Unfunded. No amounts awarded or accrued under this Plan will be funded, set aside or otherwise segregated prior to payment. The obligation to pay the bonuses awarded hereunder will at all times be an unfunded and unsecured obligation of the Company. Plan participants will have the status of general creditors and must look solely to the general assets of the Company for the payment of their bonus awards.

8. Benefits Nontransferable. No Plan participant will have the right to alienate, pledge or encumber his or her interest in this Plan, and such interest will not (to the extent permitted by law) be subject in any way to the claims of the participant's creditors or to attachment, execution or other process of law.

9. No Employment Rights. No action of the Company in establishing the Plan, no action taken under the Plan by the Company or the Administrators and no provision of the Plan itself will be construed to grant any person the right to remain in the employ of the Company or its subsidiaries for any period of specific duration. Rather, each employee is employed “at will,” which means that either the employee or the Company or its subsidiaries may terminate the employment relationship at any time and for any reason, with or without cause.

10. Governing Law. The Plan shall be governed by, and interpreted, construed, and enforced in accordance with, the laws of the State of California without regard to its or any other jurisdiction's conflicts of laws provisions. For purposes of any dispute that may arise directly or indirectly from this Plan, the parties hereby submit and consent to the exclusive jurisdiction of the State of California and agree that any such litigation shall be conducted only in the courts of California or the federal courts for the United States for the Northern District of California and no other courts.

11. Severability. If any part or section of this Plan is declared invalid by any competent body, the remaining parts not affected by the decision shall continue in effect.

12. Transfers/Job Changes. Subject to the discretion of the Administrators, a participant's bonus is based upon the participant's Base Eligible Earnings when: (a) the participant transfers from employment with Facebook to a related company (i.e. a Facebook subsidiary); (b) the participant permanently transfers from a Facebook U.S. location to a Facebook non-U.S. location

(or vice versa); (c) the participant transfers from an exempt to a non-exempt position; or (d) a participant is subject to an Individual Bonus Goal change. Employees who leave the Company and are re-hired within the same bonus eligibility period may be eligible to receive a bonus award based solely on the employee's Base Eligible Earnings received after being re-hired.

13. Code section 409A. Notwithstanding any provision of this Agreement to the contrary, all payments in accordance with this Plan are intended to meet the requirements for the “short-term deferral” exception to Section 409A of the Code, the parties intend to administer this Agreement in a manner that is consistent with those requirements, and this Agreement shall be construed and interpreted in accordance with such intent.

EX-21.1

EXHIBIT 21.1

LIST OF SUBSIDIARIES

FACEBOOK, INC.

Andale Acquisition Corporation (Delaware)

Edge Network Services Limited (Ireland)

Facebook Ireland Limited (Ireland)

Facebook Operations, LLC (Delaware)

Pinnacle Sweden AB (Sweden)

Vitesse, LLC (Delaware)

EX-23.1

EXHIBIT 23.1

CONSENT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-181566) pertaining to the 2005 Officers’ Stock Plan, 2005 Stock Plan, and 2012 Equity Incentive Plan of Facebook, Inc. of our report dated February 1, 2013, with respect to the consolidated financial statements of Facebook, Inc., included in this Annual Report (Form 10-K) for the year ended December 31, 2012.

/s/ Ernst & Young LLP

San Francisco, California

February 1, 2013

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF PERIODIC REPORT UNDER SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Mark Zuckerberg, certify that:

1. I have reviewed this annual report on Form 10-K of Facebook, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	February 1, 2013
		/s/ MARK ZUCKERBERG
		Mark Zuckerberg
		Chairman and Chief Executive Officer
		(Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF PERIODIC REPORT UNDER SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, David A. Ebersman, certify that:

1. I have reviewed this annual report on Form 10-K of Facebook, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	February 1, 2013
		/s/ DAVID A. EBERSMAN
		David A. Ebersman
		Chief Financial Officer
		(Principal Financial Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

I, Mark Zuckerberg, Chairman and Chief Executive Officer of Facebook, Inc. (Company), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

• the Annual Report on Form 10-K of the Company for the year ended December 31, 2012 (Report) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

• the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the periods presented therein.

Date:	February 1, 2013
		/s/ MARK ZUCKERBERG
		Mark Zuckerberg
		Chairman and Chief Executive Officer
		(Principal Executive Officer)

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

I, David A. Ebersman, Chief Financial Officer of Facebook, Inc. (Company), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

• the Annual Report on Form 10-K of the Company for the year ended December 31, 2012 (Report) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

• the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the periods presented therein.

Date:	February 1, 2013
		/s/ DAVID A. EBERSMAN
		David A. Ebersman
		Chief Financial Officer
		(Principal Financial Officer)

XML

Summary of Significant Accounting Policies - Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2012
Less than
Intangible Assets
Useful lives from date of acquisitions	1 year
Max
Intangible Assets
Useful lives from date of acquisitions	17 years

XML

Stockholders' Equity - Preferred and Common Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended				1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended						1 Months Ended
	May 31, 2012	Dec. 31, 2012	May 17, 2012	Dec. 31, 2011	May 31, 2012 Series A Preferred Stock	Dec. 31, 2011 Series A Preferred Stock	May 17, 2012 Series A Preferred Stock	May 31, 2012 Series B Preferred Stock	Dec. 31, 2011 Series B Preferred Stock	May 17, 2012 Series B Preferred Stock	May 31, 2012 Series C Preferred Stock	Dec. 31, 2011 Series C Preferred Stock	May 17, 2012 Series C Preferred Stock	May 31, 2012 Series D Preferred Stock	Dec. 31, 2011 Series D Preferred Stock	May 17, 2012 Series D Preferred Stock	May 31, 2012 Series E Preferred Stock	Dec. 31, 2011 Series E Preferred Stock	May 17, 2012 Series E Preferred Stock	Dec. 31, 2012 Class A Common Stock votes	Dec. 31, 2011 Class A Common Stock	Dec. 31, 2012 Class B Common Stock votes	Dec. 31, 2011 Class B Common Stock	May 30, 2012 Common Class B to Class A
Class of Stock
Conversion of stock into common stock	545,401,443																							335,943,024
Shares Authorized			569,001,000				134,747,000			226,032,000			95,768,000			67,454,000			45,000,000
Shares Issued and Outstanding			543,217,000				133,055,000			224,123,000			91,410,000			50,591,000			44,038,000
Aggregate Liquidation Preference			$ 615	$ 615		$ 1	$ 1		$ 13	$ 13		$ 26	$ 26		$ 375	$ 375		$ 200	$ 200
Dividends Per Share Per Annum					$ 0.00036875	$ 0.00036875		$ 0.00456000	$ 0.00456000		$ 0.02297335	$ 0.02297335		$ 0.59300000	$ 0.59300000		$ 0.36332640	$ 0.36332640
Conversion Ratio Per Share						1.000000	1.000000		1.004910	1.004910		1.004909	1.004909		1.012561	1.012561		1.000000	1.000000
Common stock, shares authorized																				5,000,000,000	4,141,000,000	4,141,000,000	4,141,000,000
Common stock, par value		$ 0.000006		$ 0.000006																$ 0.000006		$ 0.000006
Common stock, number of votes by class																				1		10
Common stock, shares, issued																				1,671,277,621	117,000,000	701,427,574	1,213,000,000
Common stock, shares outstanding																				1,671,277,621	117,000,000	701,427,574	1,213,000,000

XML

Goodwill and Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Intangible Assets Disclosure
Gross Carrying Amount	$ 911	$ 112
Accumulated Amortization	(110)	(32)
Net Carrying Amount	801	80
Amortization expense	78	20	9
Goodwill
Goodwill beginning	82	37
Goodwill acquired	505	48
Effect of currency translation adjustment		(3)
Goodwill ending	587	82	37
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2013	126
2014	120
2015	112
2016	102
2017	86
Thereafter	255
Net Carrying Amount	801	80
Acquired patents
Goodwill and Intangible Assets Disclosure
Gross Carrying Amount	684	51
Accumulated Amortization	(53)	(4)
Net Carrying Amount	631	47
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Net Carrying Amount	631	47
Acquired technology
Goodwill and Intangible Assets Disclosure
Gross Carrying Amount	133	38
Accumulated Amortization	(32)	(15)
Net Carrying Amount	101	23
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Net Carrying Amount	101	23
Tradename and other
Goodwill and Intangible Assets Disclosure
Gross Carrying Amount	94	23
Accumulated Amortization	(25)	(13)
Net Carrying Amount	69	10
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Net Carrying Amount	$ 69	$ 10
Min | Acquired patents
Goodwill and Intangible Assets Disclosure
Useful lives from date of acquisitions	3 years
Min | Acquired technology
Goodwill and Intangible Assets Disclosure
Useful lives from date of acquisitions	2 years
Min | Tradename and other
Goodwill and Intangible Assets Disclosure
Useful lives from date of acquisitions	2 years
Max | Acquired patents
Goodwill and Intangible Assets Disclosure
Useful lives from date of acquisitions	18 years
Max | Acquired technology
Goodwill and Intangible Assets Disclosure
Useful lives from date of acquisitions	10 years
Max | Tradename and other
Goodwill and Intangible Assets Disclosure
Useful lives from date of acquisitions	7 years

XML

Stockholders' Equity - Share-based Compensation Plans (Detail) (USD $)	12 Months Ended									1 Months Ended
	Dec. 31, 2012 plans		Dec. 31, 2012 Employee Stock Option	Dec. 31, 2011 Employee Stock Option	Dec. 31, 2010 Employee Stock Option	Dec. 31, 2012 2012 Plan	Dec. 31, 2012 2012 Plan Min	Dec. 31, 2012 2012 Plan Max	Dec. 31, 2012 2005 Officer's Stock Plan	Nov. 30, 2005 2005 Officer's Stock Plan Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Share-based employee compensation plans, number	3
2012 Equity Incentive Plan shares authorized	25,000,000	[1]				25,000,000
Shares reserved for issuance increase date range							Jan. 01, 2013	Jan. 01, 2022
Shares reserved for issuance increase percentage						2.50%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period						10 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period for Plan						10 years			10 years
Shares of incentive and nonstatutory stock options provided for issuance									120,000,000
Non statutory stock option issued to CEO to purchase shares of Class B common stock										120,000,000
Options partially exercised and fully vested									60,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected term from grant date (in years)					7 years 1 month 24 days
Risk-free interest rate					1.69%
Expected volatility					46.00%
Dividend yield					0.00%
Weighted-average fair value of employee options granted			$ 0.00	$ 0.00	$ 5.26

[1] After excluding 195 thousand restricted stock awards included in the table above, 171,796 thousand shares are available for grant under the Stock Plans as of December 31, 2012.

XML

Fair Value Measurements (Details) (Fair Value, Measurements, Recurring, USD $) In Millions, unless otherwise specified	Dec. 31, 2012	May 31, 2012	Dec. 31, 2011
Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			$ 1,002
Total cash equivalents and marketable securities	8,113		3,398
Contingent consideration liability	4
Derivative financial instruments	4
Total | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	871		892
Total | US government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			60
Marketable securities	5,165		1,415
Total | US government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			50
Marketable securities	2,077		981
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			1,002
Total cash equivalents and marketable securities	8,113		3,398
Contingent consideration liability	0
Derivative financial instruments	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	871		892
Quoted Prices in Active Markets for Identical Assets (Level 1) | US government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			60
Marketable securities	5,165		1,415
Quoted Prices in Active Markets for Identical Assets (Level 1) | US government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			50
Marketable securities	2,077		981
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			0
Total cash equivalents and marketable securities	0		0
Contingent consideration liability	0
Derivative financial instruments	4
Significant Other Observable Inputs (Level 2) | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	0		0
Significant Other Observable Inputs (Level 2) | US government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			0
Marketable securities	0		0
Significant Other Observable Inputs (Level 2) | US government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			0
Marketable securities	0		0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			0
Total cash equivalents and marketable securities	0		0
Contingent consideration liability	4	6
Derivative financial instruments	0
Significant Unobservable Inputs (Level 3) | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	0		0
Significant Unobservable Inputs (Level 3) | US government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			0
Marketable securities	0		0
Significant Unobservable Inputs (Level 3) | US government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents			0
Marketable securities	$ 0		$ 0

XML

Other Income (Expense), Net (Tables)

12 Months Ended

Dec. 31, 2012

Other Income and Expenses [Abstract]

Schedule of Other Income (Expense), Net

The following table presents the detail of other income (expense), net, for the periods presented (in millions):

	Year Ended December 31,
	2012			2011			2010
Interest income	$	14		$	4		$	1
Foreign currency exchange losses, net	(9		)	(29		)	(1		)
Other	2			6			(2		)
Other income (expense), net	$	7		$	(19	)	$	(2	)

XML

Stockholders' Equity - Stock Options Additional Disclosures (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Number of shares	122,821	258,539
Options Outstanding, Weighted-Average Remaining Life	3 years 9 months 15 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.85
Options Exercisable, Number of Shares	113,688
Options Exercisable, Weighted-Average Exercisable Price	$ 0.34
Aggregate intrinsic value of the options exercised	$ 4,230	$ 2,380	$ 492
Total grant date fair value of stock options vested	$ 5	$ 6	$ 16
Exercise Price Range 0.00 - 0.04
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 0.00
Exercise Price, minimum	$ 0.04
Number of shares	5,381
Options Outstanding, Weighted-Average Remaining Life	2 years 7 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.04
Options Exercisable, Number of Shares	5,381
Options Exercisable, Weighted-Average Exercisable Price	$ 0.04
Exercise Price Range 0.06
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 0.06
Exercise Price, minimum	$ 0.06
Number of shares	63,379
Options Outstanding, Weighted-Average Remaining Life	2 years 10 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.06
Options Exercisable, Number of Shares	63,379
Options Exercisable, Weighted-Average Exercisable Price	$ 0.06
Exercise Price Range 0.10 - 0.18
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 0.10
Exercise Price, minimum	$ 0.18
Number of shares	18,096
Options Outstanding, Weighted-Average Remaining Life	3 years 7 months 28 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.15
Options Exercisable, Number of Shares	18,096
Options Exercisable, Weighted-Average Exercisable Price	$ 0.15
Exercise Price Range 0.29 - 0.33
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 0.29
Exercise Price, minimum	$ 0.33
Number of shares	14,701
Options Outstanding, Weighted-Average Remaining Life	4 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.31
Options Exercisable, Number of Shares	14,701
Options Exercisable, Weighted-Average Exercisable Price	$ 0.31
Exercise Price Range 1.78
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 1.78
Exercise Price, minimum	$ 1.78
Number of shares	4,693
Options Outstanding, Weighted-Average Remaining Life	5 years 7 months 2 days
Options Outstanding, Weighted-Average Exercise Price	$ 1.78
Options Exercisable, Number of Shares	3,701
Options Exercisable, Weighted-Average Exercisable Price	$ 1.78
Exercise Price Range 1.85
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 1.85
Exercise Price, minimum	$ 1.85
Number of shares	4,865
Options Outstanding, Weighted-Average Remaining Life	6 years 0 months 15 days
Options Outstanding, Weighted-Average Exercise Price	$ 1.85
Options Exercisable, Number of Shares	3,938
Options Exercisable, Weighted-Average Exercisable Price	$ 1.85
Exercise Price Range 2.95
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 2.95
Exercise Price, minimum	$ 2.95
Number of shares	2,506
Options Outstanding, Weighted-Average Remaining Life	6 years 7 months 21 days
Options Outstanding, Weighted-Average Exercise Price	$ 2.95
Options Exercisable, Number of Shares	1,567
Options Exercisable, Weighted-Average Exercisable Price	$ 2.95
Exercise Price Range 3.23
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 3.23
Exercise Price, minimum	$ 3.23
Number of shares	4,500
Options Outstanding, Weighted-Average Remaining Life	6 years 9 months 26 days
Options Outstanding, Weighted-Average Exercise Price	$ 3.23
Options Exercisable, Number of Shares	2,925
Options Exercisable, Weighted-Average Exercisable Price	$ 3.23
Exercise Price Range 10.39
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 10.39
Exercise Price, minimum	$ 10.39
Number of shares	3,500
Options Outstanding, Weighted-Average Remaining Life	7 years 6 months 22 days
Options Outstanding, Weighted-Average Exercise Price	$ 10.39
Options Exercisable, Number of Shares	0
Options Exercisable, Weighted-Average Exercisable Price	$ 0.00
Exercise Price Range 15.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Exercise Price, maximum	$ 15.00
Exercise Price, minimum	$ 15.00
Number of shares	1,200
Options Outstanding, Weighted-Average Remaining Life	7 years 9 months 22 days
Options Outstanding, Weighted-Average Exercise Price	$ 15.00
Options Exercisable, Number of Shares	0
Options Exercisable, Weighted-Average Exercisable Price	$ 0.00

XML

Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Numerators and Denominators of Basic and Diluted EPS Computations for Common Stock

Basic and diluted EPS are the same for each class of common stock because they are entitled to the same liquidation and dividend rights.

The numerators and denomina

XML

Long-term Debt - Borrowings (Details) (USD $)			12 Months Ended	1 Months Ended		1 Months Ended		1 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 Revolving Credit Facility Unsecured Five Year Revolving Credit Facility 2011	Feb. 29, 2012 Revolving Credit Facility Unsecured Five Year Revolving Credit Facility 2012	Dec. 31, 2012 Revolving Credit Facility Unsecured Five Year Revolving Credit Facility 2012	Feb. 29, 2012 Bridge Loan Bridge Credit Facility, Settlement of RSU's from IPO	Feb. 29, 2012 Bridge Loan Bridge Credit Facility, Settlement of RSU's from IPO 180 days after borrowing	Feb. 29, 2012 Bridge Loan Bridge Credit Facility, Settlement of RSU's from IPO 90 after borrowing	Oct. 25, 2012 Unsecured debt Amended and Restated Term Loan	Oct. 25, 2012 Unsecured debt Unsecured Term Loan
Debt Instrument
Line Of Credit Maturity Period			5 years	5 years
Term loan facility, term period									3 years
Line of credit facility, maximum borrowing capacity			$ 2,500,000,000	$ 5,000,000,000		$ 3,000,000,000
Debt instrument, interest rate during period			LIBOR	LIBOR		LIBOR			LIBOR
Basis spread on variable rate			1.00%	1.00%		1.00%			1.00%
Debt Instrument, Unused Capacity, Commitment Fee Percentage									0.10%
Long-term debt	1,500,000,000	0							1,500,000,000
Line of credit facility, amount outstanding			0		0
Line of credit facility, unused capacity, commitment fee percentage				0.10%				0.10%
Debt Instrument, Face Amount										$ 1,500,000,000
Line of credit facility, used capactiy, additional fee percentage							0.25%
Term loan facility upfront fee percentage									0.15%

XML

Acquisitions (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended		12 Months Ended		12 Months Ended						12 Months Ended							12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Instagram Inc.	Dec. 31, 2012 Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Acquired technology Instagram Inc.	Dec. 31, 2012 Acquired technology Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Acquired technology Min	Dec. 31, 2012 Acquired technology Min Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Acquired technology Max	Dec. 31, 2012 Acquired technology Max Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Tradename and other Instagram Inc.	Dec. 31, 2012 Tradename and other Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Tradename and other Min	Dec. 31, 2012 Tradename and other Min Instagram Inc.	Dec. 31, 2012 Tradename and other Min Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Tradename and other Max	Dec. 31, 2012 Tradename and other Max Instagram Inc.	Dec. 31, 2012 Tradename and other Max Series of Individually Immaterial Business Acquisitions	Dec. 31, 2012 Patents	Dec. 31, 2012 Patents Microsoft Corporation	Dec. 31, 2012 Patents Min	Dec. 31, 2012 Patents Max	Dec. 31, 2012 Patents Current period acquisition Min	Dec. 31, 2012 Patents Current period acquisition Max	Dec. 31, 2012 Patents U.S. Microsoft Corporation Patent	Dec. 31, 2012 Patents Foreign Microsoft Corporation Patent	Dec. 31, 2012 Vested Shares Common Class B Instagram Inc.	Dec. 31, 2012 Unvested Shares Common Class B Instagram Inc.
Business Acquisition
Purchase price of acquisition			$ 521	$ 87
Number of shares issued																											12
Cash paid for business acquisition			300
Stock issued, unvested shares																												11
Aggregate fair value of stock issued			194
Stock issued, share based compensation expense vesting period			3 years
Allocation of estimated fair value of assets acquired and liabilities assumed
Amortizable intangible assets					74	20					64	8
Net liabilities assumed			(1)	(4)
Deferred tax liabilities			(49)	(9)
Net assets acquired			88	15
Goodwill			433	72
Total fair value considerations			521	87
Amount of acquired finite-lived intangible assets																			633
Number of patents acquired																									615	170
Payments to acquire intangible assets																				550
Purchased intangible assets	$ 92	$ 10																		$ 49
Useful lives from date of acquisitions					5 years		2 years	3 years	10 years	5 years			2 years	2 years	2 years	7 years	7 years	3 years			3 years	18 years	3 years	17 years

XML

Summary of Significant Accounting Policies - Share-based Compensation (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation	$ 1,572	$ 217	$ 20
Tax benefit from share-based award activity	1,033	433	115
Income tax refundable	451	0
Excess tax benefit from share-based award activity	1,033	433	115
Restricted Stock Units (RSUs) | Pre-2011 RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	4 years
Share-based compensation	$ 1,040
Min | Restricted Stock Units (RSUs) | Post-2011 RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	4 years
Max | Restricted Stock Units (RSUs) | Post-2011 RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	5 years

XML

Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Leases [Abstract]
Capital lease agreement period	3 years
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	$ 398
2014	278
2015	125
2016	20
2017	15
Thereafter	143
Total minimum lease payments	979
Less: amount representing interest and taxes	(123)
Less: current portion of the present value of minimum lease payments	(365)	(279)
Capital lease obligations, less current portion	491	398
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	142
2014	128
2015	117
2016	110
2017	102
Thereafter	252
Total minimum lease payments	851
Operating lease expense	196	219	178
Other contractual commitments
Other contractual commitments	$ 749
Min
Leases [Abstract]
Interest rate	1.00%
Max
Leases [Abstract]
Interest rate	13.00%
Expiration date of lease	2027
Buildings
Leases [Abstract]
Capital lease agreement period	15 years

XML

Geographical Information - Property and Equipment (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Long-Lived Assets, by Geographical Area
Property and equipment, net	$ 2,391		$ 1,475
United States
Long-Lived Assets, by Geographical Area
Property and equipment, net	2,110		1,444
Rest of world
Long-Lived Assets, by Geographical Area
Property and equipment, net	$ 281	[1]	$ 31	[1]

[1] No individual country exceeded 10% of our total property and equipment, net for any period presented.

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Income Taxes - Provision for Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 559	$ 664	$ 325
State	45	60	57
Foreign	22	8	1
Total current tax expense	626	732	383
Deferred:
Federal	(172)	(34)	13
State	(6)	(3)	6
Deferred Foreign Income Tax Expense (Benefit)	(7)	0	0
Total deferred tax expense (benefit)	(185)	(37)	19
Provision for income taxes	$ 441	$ 695	$ 402

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Property and Equipment (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment
Property and equipment, gross	$ 3,273	$ 1,925
Accumulated depreciation	(882)	(450)
Property and equipment, net	2,391	1,475
Depreciation expense	566	303	129
Assets acquired under capital lease agreements	1,280	881
Accumulated depreciation of property and equipment acquired under capital leases	437	210
Network Equipment
Property, Plant and Equipment
Property and equipment, gross	1,912	1,016
Land
Property, Plant and Equipment
Property and equipment, gross	36	34
Buildings
Property, Plant and Equipment
Property and equipment, gross	594	355
Leasehold Improvements
Property, Plant and Equipment
Property and equipment, gross	194	120
Computer software, office equipment and other
Property, Plant and Equipment
Property and equipment, gross	93	73
Construction in progress
Property, Plant and Equipment
Property and equipment, gross	$ 444	$ 327

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Acquisitions

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Acquisitions

Acquisitions

In August 2012, we completed our acquisition of Instagram, Inc. (Instagram), a privately-held company which has built a mobile phone-based photo-sharing service that is expected to enhance our photos product offerings and to enable users to increase their levels of mobile engagement and photo sharing. We have accounted for this transaction as a business acquisition for a total purchase price of $521 million, consisting of the issuance of approximately 12 million vested shares of our Class B common stock to non-employee stockholders of Instagram and $300 million in cash. The value of the equity component of the purchase price was determined for accounting purposes based on the fair value of our common stock on the closing date. We also issued approximately 11 million unvested shares of our Class B common stock to employee stockholders of Instagram on the closing date, with an aggregate fair value of $194 million, which will be recognized as they vest over a three-year service period as share-based compensation expense.

In 2012, we also completed other business acquisitions for total consideration of $87 million. These acquisitions were not material to our consolidated financial statements individually or in the aggregate. Pro forma results of operations related to our acquisition of Instagram or of other companies during the year ended December 31, 2012 have not been presented because they are not material to our consolidated statements of income, either individually or in the aggregate.

The following table summarizes the allocation of the fair values of the assets acquired and liabilities assumed and the related useful lives, where applicable:

	Instagram, Inc.				Other
	(in millions)			Useful lives (in years)	(in millions)			Useful lives (in years)
Amortizable intangible assets:
Acquired technology	$	74		5	$	20		3 - 5
Tradename and other	64			2 - 7	8			2 - 3
Net liabilities assumed	(1		)		(4		)
Deferred tax liabilities	(49		)		(9		)
Net assets acquired	$	88			$	15
Goodwill	433				72
Total fair value considerations	$	521			$	87

Goodwill generated from all business acquisitions completed during 2012 is primarily attributable to expected synergies from future growth and potential monetization opportunities and is not deductible for tax purposes.

In 2012, we also acquired $633 million of patents and other intellectual property rights. We completed the largest of these intangible asset purchases in June 2012 under an agreement with Microsoft Corporation pursuant to which we were assigned Microsoft's rights to acquire approximately 615 U.S. patents and patent applications and certain of their foreign counterparts, consisting of approximately 170 foreign patents and patent applications, that were subject to an agreement between AOL Inc. and Microsoft entered into on April 5, 2012. We paid $550 million in cash in exchange for these patents and patent applications. As part of this transaction, we established a deferred tax liability of $49 million to reflect the difference between the future tax basis and book basis in the acquired patents and patent applications, which also increased the capitalized patent cost by this amount. As part of this transaction, we obtained a license to the other AOL patents and patent applications being purchased by Microsoft and granted Microsoft a license to the AOL patents and patent applications that we acquired. The acquisitions of these patents, patent applications and other intellectual property rights were accounted for as asset acquisitions. Patents acquired during 2012 have estimated useful lives ranging from three to 17 years from the dates of acquisition.

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Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	6.20%	2.20%	4.00%
Research tax credits	0.00%	(1.00%)	(0.80%)
Share-based compensation	19.20%	1.50%	0.30%
Foreign losses not benefited	26.90%	3.30%	0.80%
Other	2.00%	0.00%	0.60%
Effective tax rate	89.30%	41.00%	39.90%

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Earnings per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Numerator
Net income	$ 53	$ 1,000	$ 606
Less: Net income attributable to participating securities	21	332	234
Net income attributable to Class A and Class B common stockholders	32	668	372
Denominator
Number of shares used for basic EPS computation	2,006	1,294	1,107
Basic EPS	$ 0.02	$ 0.52	$ 0.34
Numerator
Net income attributable to Class A and Class B common stockholders	32	668	372
Denominator
Number of shares used for basic EPS computation	2,006	1,294	1,107
Number of shares used for diluted EPS computation	2,166	1,508	1,414
Diluted EPS	$ 0.01	$ 0.46	$ 0.28
Class A Common Stock
Numerator
Net income	18	85	18
Less: Net income attributable to participating securities	7	28	7
Net income attributable to Class A and Class B common stockholders	11	57	11
Denominator
Weighted average shares outstanding	668	110	32
Less: Shares subject to repurchase	1	0	0
Number of shares used for basic EPS computation	667	110	32
Basic EPS	$ 0.02	$ 0.52	$ 0.34
Numerator
Net income attributable to Class A and Class B common stockholders	11	57	11
Reallocation of net income attributable to participating securities	0	31	30
Reallocation of net income as a result of conversion of Class B to Class A common stock	21	611	361
Reallocation of net income to Class B common stock	0	0	0
Net income attributable to common stockholders for diluted EPS	32	699	402
Denominator
Number of shares used for basic EPS computation	667	110	32
Conversion of Class B to Class A common stock	1,339	1,184	1,075
Shares subject to repurchase	3	3	4
Warrants	0	2	8
Number of shares used for diluted EPS computation	2,166	1,508	1,414
Diluted EPS	$ 0.01	$ 0.46	$ 0.28
Class A Common Stock | Employee Stock Option
Denominator
Share based payment arrangements	134	204	295
Class A Common Stock | Restricted Stock Units (RSUs)
Denominator
Share based payment arrangements	23	5	0
Class B Common Stock
Numerator
Net income	35	915	588
Less: Net income attributable to participating securities	14	304	227
Net income attributable to Class A and Class B common stockholders	21	611	361
Denominator
Weighted average shares outstanding	1,344	1,189	1,081
Less: Shares subject to repurchase	5	5	6
Number of shares used for basic EPS computation	1,339	1,184	1,075
Basic EPS	$ 0.02	$ 0.52	$ 0.34
Numerator
Net income attributable to Class A and Class B common stockholders	21	611	361
Reallocation of net income attributable to participating securities	0	0	0
Reallocation of net income as a result of conversion of Class B to Class A common stock	0	0	0
Reallocation of net income to Class B common stock	1	37	32
Net income attributable to common stockholders for diluted EPS	$ 22	$ 648	$ 393
Denominator
Number of shares used for basic EPS computation	1,339	1,184	1,075
Conversion of Class B to Class A common stock	0	0	0
Shares subject to repurchase	3	3	4
Warrants	0	2	8
Number of shares used for diluted EPS computation	1,499	1,398	1,382
Diluted EPS	$ 0.01	$ 0.46	$ 0.28
Class B Common Stock | Employee Stock Option
Denominator
Share based payment arrangements	134	204	295
Class B Common Stock | Restricted Stock Units (RSUs)
Denominator
Share based payment arrangements	23	5	0
Restricted Stock Units (RSUs)
Earnings Per Share, Basic, by Common Class, Including Two Class Method
Antidilutive securities excluded from computation of earnings per share	15	3
Employee Stock Option
Earnings Per Share, Basic, by Common Class, Including Two Class Method
Antidilutive securities excluded from computation of earnings per share			2

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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in carrying amount of goodwill for the years ended December 31, 2012 and 2011 are as follows (in millions):

Balance as of December 31, 2010	$	37
Goodwill acquired	48
Effect of currency translation adjustment	(3		)
Balance as of December 31, 2011	82
Goodwill acquired	505
Balance as of December 31, 2012	$	587

Intangible Assets

Intangible assets consist of the following (in millions):

		December 31, 2012							December 31, 2011
	Useful lives from date of acquisitions (in years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizable intangible assets:
Acquired patents	3 - 18	$	684	$	(53	)	$	631	$	51	$	(4	)	$	47
Acquired technology	2 - 10	133		(32		)	101		38		(15		)	23
Tradename and other	2 - 7	94		(25		)	69		23		(13		)	10
Total		$	911	$	(110	)	$	801	$	112	$	(32	)	$	80

Estimated Amortization Expense for Unamortized Acquired Intangible Assets

As of December 31, 2012, expected amortization expense for the unamortized acquired intangible assets for the next five years and thereafter is as follows (in millions):

2013	$	126
2014	120
2015	112
2016	102
2017	86
Thereafter	255
Total	$	801

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Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Property and equipment

Property and equipment consists of the following (in millions):

	December 31,
	2012			2011
Network equipment	$	1,912		$	1,016
Land	36			34
Buildings	594			355
Leasehold improvements	194			120
Computer software, office equipment and other	93			73
Construction in progress	444			327
Total	3,273			1,925
Less: accumulated depreciation	(882		)	(450		)
Property and equipment, net	$	2,391		$	1,475

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Stockholders' Equity - Stock Option and RSU Award Activity (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Shares Available for Grant(1)
Balance as of December 31, 2011	52,318,000	[1]
RSUs settled	0	[1]
Stock options forfeited/cancelled	213,000	[1]
RSUs granted	(41,252,000)	[1]
Shares withheld related to net share settlement of RSUs	122,757,000	[1]
RSUs forfeited and cancelled	12,955,000	[1]
2012 Equity Incentive Plan shares authorized	25,000,000	[1]
Balance as of December 31, 2012	171,991,000	[1]	52,318,000	[1]
Number of Shares
Balance as of December 31, 2011	258,539,000
RSUs settled	(135,505,000)
Stock options forfeited/cancelled	(213,000)
Balance as of December 31, 2012	122,821,000		258,539,000
Stock options vested and expected to vest as of December 31, 2012	122,791,000
Stock options exercisable as of December 31, 2012	113,688,000
Weighted Average Exercise Price
Balance as of December 31, 2011	$ 0.47
RSUs settled	$ 0.12
Stock options forfeited/cancelled	$ 1.41
Balance as of December 31, 2012	$ 0.85		$ 0.47
Stock options vested and expected to vest as of December 31, 2012	$ 0.85
Stock options exercisable as of December 31, 2012	$ 0.34
Weighted- Average Remaining Contractual Term
Weighted- Average Remaining Contractual Term	3 years 9 months 15 days		4 years 4 months 17 days
Stock options vested and expected to vest as of December 31, 2012	3 years 9 months 15 days
Stock options exercisable as of December 31, 2012	3 years 6 months 11 days
Aggregate Intrinsic Value(2)
Balance as of December 31, 2011	$ 7,360	[2]
Balance as of December 31, 2012	3,166	[2]	7,360	[2]
Stock options vested and expected to vest as of December 31, 2012	3,166	[2]
Stock options exercisable as of December 31, 2012	2,989	[2]
Outstanding RSUs(3)
Balance as of December 31, 2011	378,772,000	[3]
RSUs granted	41,252,000	[3]
RSUs settled	(278,846,000)	[3]
RSUs forfeited and cancelled	(12,955,000)	[3]
Balance as of December 31, 2012	128,223,000	[3]	378,772,000	[3]
Weighted Average Grant Date Fair Value
Balance as of December 31, 2011	$ 6.83
RSUs granted	$ 32.60
RSUs settled	$ 3.02
RSUs forfeited and cancelled	$ 20.00
Balance as of December 31, 2012	$ 22.08		$ 6.83
RSUs vested	69,196,000
RSUs grant date fair value	$ 9.14
Unvested RSUs	113,044,000		153,943,000
Issuance of common stock settlement of restricted stock units (RSUs)	279,000,000
RSUs net settled	273,000,000
Shares held for tax witholdings	123,000,000
Value of shares remitted for tax withholdings	$ (2,862)
Restricted Stock Award
Shares Available for Grant(1)
Balance as of December 31, 2012	195,000	[1]
Employee Stock Options and Restricted Stock Units (RSUs)
Shares Available for Grant(1)
Balance as of December 31, 2012	171,796,000	[1]

[1] After excluding 195 thousand restricted stock awards included in the table above, 171,796 thousand shares are available for grant under the Stock Plans as of December 31, 2012.

[2] The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the assessed fair value of our common stock as of December 31, 2011 and the closing market price of our common stock as of December 31, 2012.

[3] During the year ended December 31, 2012 69,196 thousand RSUs were vested and the total grant date fair value of these RSUs vested is $9.14. As of December 31, 2012 and 2011, we have 113,044 thousand and 153,943 thousand of unvested RSUs.

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Cash, Cash Equivalents and Marketable Securities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash, Cash Equivalents and Marketable Securities
Cash	$ 1,513	$ 510
Marketable securities	7,242	2,396
Total cash and cash equivalents	2,384	1,512	1,785	633
Total cash, cash equivalents and marketable securities	9,626	3,908
Marketable Securities
Cash, Cash Equivalents and Marketable Securities
U.S. government securities	5,165	1,415
U.S. government agency securities	2,077	981
Cash Equivalents
Cash, Cash Equivalents and Marketable Securities
Money market funds	871	892
U.S. government securities	0	60
U.S. government agency securities	$ 0	$ 50

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Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Accrued Liabilities, Current [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

The components of accrued expenses and other current liabilities were as follows (in millions):

	December 31,
	2012		2011
Accrued compensation and benefits	$	146	$	57
Other current liabilities	277		239
Total accrued expenses and other current liabilities	$	423	$	296

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Commitments and Contingencies Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments for Capital and Operating Leases

The following is a schedule, by years, of the future minimum lease payments required under non-cancelable capital and operating leases as of December 31, 2012 (in millions):

	Capital Leases			Operating Leases
2013	$	398		$	142
2014	278			128
2015	125			117
2016	20			110
2017	15			102
Thereafter	143			252
Total minimum lease payments	$	979		$	851
Less: amount representing interest and taxes	(123		)
Less: current portion of the present value of minimum lease payments	(365		)
Capital lease obligations, net of current portion	$	491

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Organization and Description of Business

Facebook was incorporated in Delaware in July 2004. Our mission is to make the world more open and connected. We build products that support our mission by providing utility to Facebook users, Platform developers, and marketers. We generate substantially all of our revenue from advertising and from fees associated with our Payments infrastructure that enables users to purchase virtual and digital goods from our Platform developers.

Basis of Presentation

We prepared the consolidated financial statements in accordance with U.S. generally accepted accounting principles (GAAP). The consolidated financial statements include the accounts of Facebook, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated.

Use of Estimates

Conformity with GAAP requires the use of estimates and judgments that affect the reported amounts in the consolidated financial statements and accompanying notes. These estimates form the basis for judgments we make about the carrying values of our assets and liabilities, which are not readily apparent from other sources. We base our estimates and judgments on historical information and on various other assumptions that we believe are reasonable under the circumstances. GAAP requires us to make estimates and judgments in several areas, including, but not limited to, those related to revenue recognition, collectability of accounts receivable, contingent liabilities, fair value of share-based awards, fair value of financial instruments, fair value of acquired intangible assets and goodwill, useful lives of intangible assets and property and equipment, and income taxes. These estimates are based on management's knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ materially from those estimates.

Reclassifications

We have reclassified certain prior period amounts within our consolidated statements of income and cash flows to conform to our current year presentation. These reclassifications did not affect previously reported revenue, total costs and expenses, income from operations, net income in the consolidated statements of income, or net cash provided by operating activities in the consolidated statements of cash flows.

Revenue Recognition

We generate substantially all of our revenue from advertising and payment processing fees. We recognize revenue once all of the following criteria have been met:

• persuasive evidence of an arrangement exists;

• delivery of Facebook's obligations to our customer has occurred;

• the price is fixed or determinable; and

• collectability of the related receivable is reasonably assured.

Revenue for the years ended December 31, 2012, 2011, and 2010 consists of the following (in millions):

	Year Ended December 31,
	2012		2011		2010
Advertising	$	4,279	$	3,154	$	1,868
Payments and other fees	810		557		106
Total revenue	$	5,089	$	3,711	$	1,974

Advertising

Advertising revenue is generated by displaying ad products on the Facebook website or mobile app and third-party affiliated websites or mobile apps. The arrangements are evidenced by either online acceptance of terms and conditions or contracts that stipulate the types of advertising to be delivered, the timing and the pricing. Marketers pay for ad products either directly or through their relationships with advertising agencies, based on the number of impressions delivered or the number of clicks made by our users. The typical term of an advertising arrangement is approximately 30 days with billing generally occurring after the delivery of the advertisement.

We recognize revenue from the delivery of click-based ads in the period in which a user clicks on the content. We recognize revenue from the display of impression-based ads in the contracted period in which the impressions are delivered. Impressions are considered delivered when an ad is displayed to users.

Payments and Other Fees

We enable Payments from our users to our Platform developers. Our users can transact and make payments on the Facebook Platform by using credit cards, PayPal or other payment methods available on our website. The primary method for users to transact with the developers on the Facebook Platform is via the purchase of our virtual currency, which enables our users to purchase virtual and digital goods in games and apps. Upon the initial sale of our virtual currency, we record consideration received from a user as a deposit.

When a user engages in a payment transaction utilizing our virtual currency for the purchase of a virtual or digital good from a Platform developer, we reduce the user's virtual currency balance by the price of the purchase, which is a price that is solely determined by the Platform developer. We remit to the Platform developer an amount that is based on the total amount of virtual currency redeemed less the processing fee that we charge the Platform developer for the transaction. Our revenue is the net amount of the transaction, representing our processing fee for the service performed. We record revenue on a net basis as we do not consider ourselves to be the principal in the sale of the virtual or digital good to the user.

Our Payments terms and conditions provide for a 30-day claim period subsequent to a Payments transaction during which the customer may dispute the virtual or digital goods transaction. Through the third quarter of 2012, we had deferred recognition of Payments revenue until the expiration of this period as we were unable to make reasonable and reliable estimates of future refunds or chargebacks arising during this claim period, due to lack of historical transactional information. Beginning in the fourth quarter of 2012, we had 24 months of historical transactional information which enabled us to estimate future refunds and chargebacks. Accordingly, in the fourth quarter of 2012, we recorded all Payments revenues at the time of the purchase of the related virtual or digital goods, net of estimated refunds or chargebacks. This change resulted in a one-time increase in Payments revenue in the fourth quarter of 2012 of approximately $66 million as we recognized revenue from four months of transactions.

Other fees, which includes user Promoted Posts and, to a lesser extent, Facebook Gifts, have not been material in all periods presented in our financial statements.

Revenue is recognized net of applicable sales and other taxes.

Cost of Revenue

Our cost of revenue consists primarily of expenses associated with the delivery and distribution of our products. These include expenses related to the operation of our data centers such as facility and server equipment depreciation, facility and server equipment rent expense, energy and bandwidth costs, support and maintenance costs, and salaries, benefits and share-based compensation for certain personnel on our operations teams. Cost of revenue also includes credit card and other transaction fees related to processing customer transactions.

Share-based Compensation

We account for share-based employee compensation plans under the fair value recognition and measurement provisions of GAAP. Those provisions require all share-based payments to employees, including grants of stock options and RSUs, to be measured based on the grant-date fair value of the awards, with the resulting expense generally recognized in our consolidated statements of income over the period during which the employee is required to perform service in exchange for the award.

Prior to January 1, 2011, we granted RSUs (Pre-2011 RSUs) under our 2005 Stock Plan to our employees and members of our board of directors that vested upon the satisfaction of both a service condition and a liquidity condition. The service condition for the majority of these awards is satisfied over four years. The liquidity condition was satisfied six months after our initial public offering (IPO) in May 2012. The vesting condition that was satisfied six months following our IPO did not affect the expense attribution period for the RSUs for which the service condition has been met as of the date of our IPO. This six-month period was not a substantive service condition and, accordingly, beginning on the effectiveness of our IPO in May 2012, we recognized cumulative share-based compensation expense for the portion of the RSUs that had met the service condition, following the accelerated attribution method (net of estimated forfeitures). In the year ended December 31, 2012, we recognized $1.04 billion of share-based compensation expense related to our Pre-2011 RSUs. Refer to Note 11 Stockholders' Equity for disclosure with respect to the settlement of the Pre-2011 RSUs.

RSUs granted on or after January 1, 2011 (Post-2011 RSUs) under our 2005 Stock Plan or 2012 Equity Incentive Plan (2012 Plan)are not subject to a liquidity condition in order to vest, and compensation expense related to these grants is based on the grant date fair value of the RSUs and is recognized on a straight-line basis over the applicable service period. The majority of Post-2011 RSUs are earned over a service period of four to five years, and vested shares will be settled beginning in 2013.

Share-based compensation expense is recorded net of estimated forfeitures in our consolidated statements of income and as such, only those share-based awards that we expect to vest are recorded. We estimate the forfeiture rate based on historical forfeitures of equity awards and adjust the rate to reflect changes in facts and circumstances, if any. We will revise our estimated forfeiture rate if actual forfeitures differ from our initial estimates.

We have historically issued unvested restricted shares to employee stockholders of certain acquired companies. As these awards are generally subject to continued post-acquisition employment, we have accounted for them as post-acquisition share-based compensation expense. We recognize compensation expense equal to the grant date fair value of the common stock on a straight-line basis over the employee's required service period.

During the years ended December 31, 2012, 2011, and 2010, we realized tax benefits from share-based award activity of $1.03 billion, $433 million and $115 million, respectively. These amounts reflect the extent that the total reduction to our income tax liability from share-based award activity was greater than the amount of the deferred tax assets that we had previously recorded in anticipation of these benefits. These amounts are the aggregate of the individual transactions in which the reduction to our income tax liability was greater than the deferred tax assets that we recorded, reduced by any individual transactions in which the reduction to our income tax liability was less than the deferred tax assets that were recorded. These net amounts were recorded as an adjustment to stockholders' equity in each period, as an increase to cash flows from operating activities, and were not recognized in our consolidated statements of income.

The tax benefits realized from share-based award activity of $1.03 billion relate to both the reduction of current year income tax liabilities and the expected refund of $451 million from income tax loss carrybacks to 2010 and 2011.

In addition, we reported excess tax benefits that decreased our cash flows from operating activities and increased our cash flows from financing activities for the years ended December 31, 2012, 2011, and 2010, by $1.03 billion, $433 million, $115 million, respectively. The amounts of these excess tax benefits reflect the total of the individual transactions in which the reduction to our income tax liability was greater than the deferred tax assets that were recorded, but were not reduced by any of the individual transactions in which the reduction to our income tax liability was less than the deferred tax assets that were recorded.

Income Taxes

We recognize income taxes under the asset and liability method. We recognize deferred income tax assets and liabilities for the expected future consequences of temporary differences between the financial reporting and tax bases of assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to apply to taxable income for the years in which differences are expected to reverse. We recognize the effect on deferred income taxes of a change in tax rates in income in the period that includes the enactment date.

We record a valuation allowance to reduce our deferred tax assets to the net amount that we believe is more likely than not to be realized. We consider all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income and ongoing tax planning strategies in assessing the need for a valuation allowance.

We recognize tax benefits from uncertain tax positions only if we believe that it is more likely than not that the tax position will be sustained on examination by the taxing authorities based on the technical merits of the position. We make adjustments to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate. The provision for income taxes includes the effects of any reserves that are considered appropriate, as well as the related net interest and penalties.

Advertising Expense

Advertising costs are expensed when incurred and are included in marketing and sales expenses in the accompanying consolidated statements of income. We incurred advertising expenses of $67 million, $28 million, and $8 million for the years ended December 31, 2012, 2011, and 2010, respectively.

Cash and Cash Equivalents, and Marketable Securities

Cash and cash equivalents primarily consist of cash on deposit with banks and investments in money market funds, and U.S. government and U.S. government agency securities with maturities of 90 days or less from the date of purchase.

We hold investments in marketable securities, consisting of U.S. government and U.S. government agency securities. We classify our marketable securities as available-for-sale investments in our current assets because they represent investments of cash available for current operations. Our available-for-sale investments are carried at estimated fair value with any unrealized gains and losses, net of taxes, included in accumulated other comprehensive income/(loss) in stockholders' equity. Unrealized losses are charged against other income (expense), net when a decline in fair value is determined to be other-than-temporary. We have not recorded any such impairment charge in the periods presented. We determine realized gains or losses on sale of marketable securities on a specific identification method, and record such gains or losses as other income (expense), net.

We classify certain restricted cash balances within prepaid expenses and other current assets and other assets on the accompanying consolidated balance sheets based upon the term of the remaining restrictions.

Non-Marketable Securities

We invest in certain investment funds that are not publicly traded. We carry these investments at cost because we do not have significant influence over the underlying investee. We assess for any other-than-temporary impairment at least on an annual basis. No impairment charge has been recorded to-date on our non-marketable securities. We classify these investments within other assets on the accompanying consolidated balance sheets.

Derivative Financial Instruments

We account for derivative instruments as either assets or liabilities and carry them at fair value. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash-flow hedges, the effective portion of the gain or loss on the derivative instruments is initially reported as a separate component of accumulated other comprehensive income (AOCI) in shareholders' equity and is subsequently recognized in earnings when the hedge exposure is recognized in earnings. The ineffective portion of the gain or loss on the derivative instruments, if any, is recognized in earnings. To receive hedge accounting treatment, a cash flow hedge must be highly effective in offsetting changes to expected future cash flows on the hedged transaction.

In October 2012 we entered into an interest rate swap agreement to hedge our exposure to interest rate fluctuation with respect to our $1.5 billion floating rate three-year unsecured term loan facility. The critical terms of the interest rate swap agreement and the related debt agreement match and allow us to designate the interest rate swap as a highly effective cash flow hedge under GAAP. We periodically assess the effectiveness of our hedged transaction. The interest rate swap agreement is currently our only derivative instrument and is not used for trading purpose. Refer to Note 9 Long-term Debt for further disclosure on the interest rate swap agreement.

Fair Value of Financial Instruments

We apply fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. We define fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities, which are required to be recorded at fair value, we consider the principal or most advantageous market in which we would transact and the market-based risk measurements or assumptions that market participants would use in pricing the asset or liability, such as risks inherent in valuation techniques, transfer restrictions and credit risk. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1-Quoted prices in active markets for identical assets or liabilities.

Level 2-Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3-Inputs that are generally unobservable and typically reflect management's estimate of assumptions that market participants would use in pricing the asset or liability.

Our valuation techniques used to measure the fair value of money market funds and marketable debt securities were derived from quoted prices in active markets for identical assets or liabilities and our valuation technique used to measure the fair value of our derivative instrument was based on a model-driven valuation using significant inputs derived from or corroborated by observable market data.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded and carried at the original invoiced amount less an allowance for any potential uncollectible amounts. We make estimates for the allowance for doubtful accounts based upon our assessment of various factors, including historical experience, the age of the accounts receivable balances, credit quality of our customers, current economic conditions, and other factors that may affect customers' ability to pay.

Property and Equipment

Property and equipment, which includes amounts recorded under capital leases, are stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets or the remaining lease term, in the case of a capital lease, whichever is shorter.

The estimated useful lives of property and equipment are described below:

Property and Equipment	Useful Life
Network equipment	Three to four years
Buildings	15 to 20 years
Computer software, office equipment and other	Two to five years
Leased equipment and leasehold improvements	Lesser of estimated useful life or remaining lease term

Land and assets held within construction in progress are not depreciated. Construction in progress is related to the construction or development of property and equipment that have not yet been placed in service for their intended use.

The cost of maintenance and repairs is expensed as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from their respective accounts, and any gain or loss on such sale or disposal is reflected in income from operations.

Lease Obligations

We lease office space, data centers, and equipment under non-cancelable capital and operating leases with various expiration dates through 2027. Certain of the operating lease agreements contain rent holidays, rent escalation provisions, and purchase options. Rent holidays and rent escalation provisions are considered in determining the straight-line rent expense to be recorded over the lease term. The lease term begins on the date of initial possession of the leased property for purposes of recognizing lease expense on a straight-line basis over the term of the lease. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably assured at lease inception.

Loss Contingencies

We are involved in various lawsuits, claims, investigations and proceedings that arise in the ordinary course of business. We record a liability when we believe that it is both probable that a loss has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. We review these provisions at least quarterly and adjust these provisions accordingly to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information.

Business Combinations

We allocate the fair value of purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets. During the measurement period, which is one year from the acquisition date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings.

Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets

We evaluate the recoverability of property and equipment and amortizable intangible assets for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. We have not recorded any such impairment charge during the years presented.

We review goodwill for impairment at least annually or more frequently if events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. We have elected to first assess the qualitative factors to determine whether it is more likely than not that the fair value of our single reporting operating unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment under the new authoritative guidance issued by the Financial Accounting Standards Board (FASB). If we determine that it is more likely than not that its fair value is less than its carrying amount, then the two-step goodwill impairment test is performed. The first step, identifying a potential impairment, compares the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the second step would need to be performed; otherwise, no further step is required. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying amount of the goodwill. Any excess of the goodwill carrying amount over the applied fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value. As of December 31, 2012, no impairment of goodwill has been identified.

Acquired amortizable intangible assets, which are included in goodwill and intangible assets, net, are amortized on a straight-line basis over the estimated useful lives of the assets. The estimated remaining useful lives for intangible assets range from less than one year to 17 years.

In addition to the recoverability assessment, we routinely review the remaining estimated useful lives of property and equipment and amortizable intangible assets. If we reduce the estimated useful life assumption for any asset, the remaining unamortized balance would be amortized or depreciated over the revised estimated useful life.

Deferred Revenue and Deposits

Deferred revenue consists of billings in advance of revenue recognition. Deposits relate to unused virtual currency held by our users. Once this virtual currency is utilized by a user, approximately 70% of this amount would then be payable to the Platform developer and the balance would be recognized as revenue.

Deferred revenue and deposits consists of the following (in millions):

	December 31,
	2012		2011
Deferred revenue	$	8	$	75
Deposits	22		15
Total deferred revenue and deposits	$	30	$	90

Foreign Currency

Generally the functional currency of our international subsidiaries is the local currency. We translate the financial statements of these subsidiaries to U.S. dollars using month-end rates of exchange for assets and liabilities, and average rates of exchange for revenue, costs, and expenses. Translation gains and losses are recorded in accumulated other comprehensive income (loss) as a component of stockholders' equity. Net losses resulting from foreign exchange transactions were $9 million, $29 million and $1 million for the years ended December 31, 2012, 2011 and 2010, respectively. These losses were recorded as other income (expense), net on our consolidated statements of income.

Credit Risk and Concentration

Financial instruments owned by the company that are potentially subject to concentrations of credit risk consist primarily of cash, cash equivalents, restricted cash, marketable securities, accounts receivable, and derivative instruments. Cash equivalents consist of short-term money market funds and U.S. government and U.S. government agency securities, which are deposited with reputable financial institutions. Marketable securities consist of investments in U.S. government and U.S. government agency securities. Our investment policy limits investment instruments to U.S. government and U.S. government agency securities with the main objective of preserving capital and maintaining liquidity.

Accounts receivable are typically unsecured and are derived from revenue earned from customers across different industries and countries. We generated 51%, 56%, and 62% of our revenue for the years ended December 31, 2012, 2011, and 2010, respectively, from marketers and Platform developers based in the United States, with the majority of revenue outside of the United States coming from customers located in western Europe, Canada, Australia, and Brazil.

We perform ongoing credit evaluations of our customers, and generally do not require collateral. We maintain an allowance for estimated credit losses. During the years ended December 31, 2012, 2011, and 2010, our bad debt expenses were $9 million, $8 million, and $9 million, respectively. In the event that accounts receivable collection cycles deteriorate, our operating results and financial position could be adversely affected.

Revenue from one customer, Zynga, represented 12% of total revenue for the year ended December 31, 2011. Revenue from Zynga consisted of payments processing fees related to their sale of virtual goods and from direct advertising purchased by Zynga. No customer represented 10% or more of total revenue during the years ended December 31, 2012 and 2010.

Segments

Our chief operating decision-maker is our Chief Executive Officer who reviews financial information presented on a consolidated basis. There are no segment managers who are held accountable by the chief operating decision-maker, or anyone else, for operations, operating results, and planning for levels or components below the consolidated unit level. Accordingly, we have determined that we have a single reporting segment and operating unit structure.

Recently Issued and Adopted Accounting Pronouncement

Comprehensive Income

In May 2011, the FASB issued guidance that changed the requirement for presenting "Comprehensive Income" in the consolidated financial statements. The update requires an entity to present the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and should be applied retrospectively. We adopted this new guidance on January 1, 2012.

Goodwill Impairment Testing

In September 2011, the FASB issued an amendment to an existing accounting standard which provides entities an option to perform a qualitative assessment to determine whether further impairment testing on goodwill is necessary. An entity now has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step impairment test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. This standard is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We adopted this new standard on January 1, 2012 and the adoption did not have a material impact on our financial statements.

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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Equity [Abstract]

Schedule of Convertible Preferred Stock Immediately Prior to Conversion

Upon the closing of our IPO, all shares of our then-outstanding convertible preferred stock, as shown on the table below, automatically converted into an aggregate of 545,401,443 shares of our Class B common stock.

The following table summarizes the convertible preferred stock o

Stock Option and RSU Award Activity under Stock Plans

The following table summarizes the stock option and RSU award activities under the Stock Plans for the year ended December 31, 2012:

			Shares Subject to Options Outstanding							Outstanding RSUs
	Shares Available for Grant(1)		Number of Shares		Weighted Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value(2)		Outstanding RSUs(3)		Weighted Average Grant Date Fair Value
	(in thousands)		(in thousands)				(in years)	(in millions)		(in thousands)
Balance as of December 31, 2011	52,318		258,539		$	0.47	4.38	$	7,360	378,772		$	6.83
Stock options exercised	—		(135,505	)	0.12					—
Stock options forfeited/cancelled	213		(213	)	1.41					—
RSUs granted	(41,252	)	—							41,252		32.60
RSUs settled	—		—							(278,846	)	3.02
Shares withheld related to net share settlement of RSUs	122,757		—							—
RSUs forfeited and cancelled	12,955		—							(12,955	)	20.00
2012 Equity Incentive Plan shares authorized	25,000		—							—
Balance as of December 31, 2012	171,991		122,821		$	0.85	3.79	$	3,166	128,223		$	22.08
Stock options vested and expected to vest as of December 31, 2012			122,791		$	0.85	3.79	$	3,166
Stock options exercisable as of December 31, 2012			113,688		$	0.34	3.53	$	2,989

(1) After excluding 195 thousand restricted stock awards included in the table above, 171,796 thousand shares are available for grant under the Stock Plans as of December 31, 2012.

(2) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the assessed fair value of our common stock as of December 31, 2011 and the closing market price of our common stock as of December 31, 2012.

(3) During the year ended December 31, 201269,196 thousand RSUs were vested and the total grant date fair value of these RSUs vested is $9.14. As of December 31, 2012 and 2011, we have 113,044 thousand and 153,943 thousand of unvested RSUs.

Fair Value of Employee Options Granted, Weighted-Average Assumptions

The fair values of employee options granted during 2010 have been estimated as of the date of grant using the following weighted-average assumptions.

	December 31, 2010
Expected term from grant date (in years)	7.15
Risk-free interest rate	1.69%
Expected volatility	0.46
Dividend yield	—

Outstanding and Exercisable Options Under Stock Plans

The following table summarizes additional information regarding outstanding and exercisable options under the Stock Plans at

December 31, 2012:

	Options Outstanding				Options Exercisable
Exercise Price (Range)	Number of Shares	Weighted- Average Remaining Life	Weighted- Average Exercise Price		Number of Shares	Weighted- Average Exercise Price
	(in thousands)	(in years)			(in thousands)
$0.00 - 0.04	5,381	2.65	$	0.04	5,381	$	0.04
0.06	63,379	2.86	0.06		63,379	0.06
0.10 - 0.18	18,096	3.66	0.15		18,096	0.15
0.29 - 0.33	14,701	4.40	0.31		14,701	0.31
1.78	4,693	5.59	1.78		3,701	1.78
1.85	4,865	6.04	1.85		3,938	1.85
2.95	2,506	6.64	2.95		1,567	2.95
3.23	4,500	6.82	3.23		2,925	3.23
10.39	3,500	7.56	10.39		—	—
15.00	1,200	7.81	15.00		—	—
	122,821	3.79	$	0.85	113,688	$	0.34

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Summary of Significant Accounting Policies - Credit Risk and Concentration (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Concentration Risk
Bad debt expense	$ 9	$ 8	$ 9
Major customer percentage	10.00%	10.00%	10.00%
Customer concentration risk
Concentration Risk
Number of major customer	0	1	0
Customer concentration risk | Sales revenue
Concentration Risk
Entity-Wide Revenue, Major Customer, Percentage		12.00%
Geographic concentration risk | Sales revenue | U.S.
Concentration Risk
Concentration risk percentage	51.00%	56.00%	62.00%

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Stockholders' Equity - Initial Public Offering (Details) (USD $)	1 Months Ended
	May 31, 2012	May 17, 2012
Class of Stock
Selling stockholders shares sold		241,233,615
Net proceeds received from public offering	$ 6,800,000,000
Underwriting discounts and commissions	75,000,000
Offering expenses	$ 7,000,000
Class A Common Stock
Class of Stock
Number of shares issued	180,000,000
Common stock at a public offering price		38.00

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CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 2,384	$ 1,512
Marketable securities	7,242	2,396
Accounts receivable, net of allowances for doubtful accounts of $22 and $17 as of December 31, 2012 and 2011, respectively	719	547
Income tax refundable	451	0
Prepaid expenses and other current assets	471	149
Total current assets	11,267	4,604
Property and equipment, net	2,391	1,475
Goodwill and intangible assets, net	1,388	162
Other assets	57	90
Total assets	15,103	6,331
Current liabilities:
Accounts payable	65	63
Platform partners payable	169	171
Accrued expenses and other current liabilities	423	296
Deferred revenue and deposits	30	90
Current portion of capital lease obligations	365	279
Total current liabilities	1,052	899
Capital lease obligations, less current portion	491	398
Long-term debt	1,500	0
Other liabilities	305	135
Total liabilities	3,348	1,432
Commitments and contingencies
Stockholders' equity:
Convertible preferred stock	0	615
Common stock value	0	0
Additional paid-in capital	10,094	2,684
Accumulated other comprehensive income (loss)	2	(6)
Retained earnings	1,659	1,606
Total stockholders’ equity	11,755	4,899
Total liabilities and stockholders’ equity	$ 15,103	$ 6,331

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Cash and Cash Equivalents, and Marketable Securities - Contractual Maturities of Debt Securities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Cash and Cash Equivalents, and Marketable Securities [Abstract]
Marketable securities	$ 7,242	$ 2,396
Due in one year	4,815	1,964
Due in one to two years	$ 2,427	$ 432

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Millions, except Share data, unless otherwise specified	Total	Convertible Preferred Stock	Convertible Preferred Stock Series A Preferred Stock	Convertible Preferred Stock Series B - C Preferred Stock	Convertible Preferred Stock Series A - E Preferred Stock	Class A and Class B Common Stock	Class A and Class B Common Stock Series A Preferred Stock	Class A and Class B Common Stock Series B - C Preferred Stock	Class A and Class B Common Stock Series A - E Preferred Stock	Additional Paid-In Capital	Additional Paid-In Capital Series A Preferred Stock	Additional Paid-In Capital Series B - C Preferred Stock	Additional Paid-In Capital Series A - E Preferred Stock	Accumulated Other Comprehensive (Loss) Income	Retained Earnings	Total Stockholders’ Equity	Total Stockholders’ Equity Series A Preferred Stock	Total Stockholders’ Equity Series B - C Preferred Stock	Total Stockholders’ Equity Series A - E Preferred Stock
Common stock, value, outstanding beginning at Dec. 31, 2009						$ 0
Convertible preferred stock, value, outstanding beginning at Dec. 31, 2009		615
Total Stockholders' Equity, beginning at Dec. 31, 2009										253				0	0	868
Convertible preferred stock, shares, outstanding beginning at Dec. 31, 2009		543,000,000
Common stock, shares outstanding beginning at Dec. 31, 2009						1,070,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock, net of issuance costs, shares						24,000,000
Issuance of common stock, net of issuance costs, value						0				500						500
Issuance of common stock for cash upon exercise of stock options, shares						70,000,000
Issuance of common stock for cash upon exercise of stock options, value						0				6						6
Issuance of common stock related to acquisitions, shares						6,000,000
Issuance of common stock related to acquisitions, value						0				60						60
Conversion of stock into common stock			(2,000,000)
Conversion of stock, amount converted			0
Conversion of stock, shares							2,000,000
Conversion of stock, value							0				0						0
Reclassification of option liability to additional paid-in capital										3						3
Share-based compensation, related to employee share-based awards										17						17
Share-based compensation, related to nonemployee share-based awards										1						1
Excess tax benefit from share-based award activity, net of deferred tax impact										107						107
Other comprehensive income														(6)		(6)
Net income	606														606	606
Total Stockholders' Equity, ending at Dec. 31, 2010										947				(6)	606	2,162
Common stock, value, outstanding ending at Dec. 31, 2010						0
Common stock, shares outstanding ending at Dec. 31, 2010						1,172,000,000
Convertible preferred stock, value, outstanding beginning at Dec. 31, 2010		615
Convertible preferred stock, shares, outstanding beginning at Dec. 31, 2010		541,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock, net of issuance costs, shares						48,000,000
Issuance of common stock, net of issuance costs, value						0				998						998
Issuance of common stock for cash upon exercise of stock options, shares						102,000,000
Issuance of common stock for cash upon exercise of stock options, value						0				28						28
Issuance of common stock related to nonemployees for past services, shares						0
Issuance of common stock related to nonemployees for past services, value						0				3						3
Issuance of common stock related to acquisitions, shares						2,000,000
Issuance of common stock related to acquisitions, value						0				58						58
Exercise of stock warrants		8,000,000
Exercise of stock warrants, shares	0	0
Conversion of stock into common stock				(6,000,000)
Conversion of stock, amount converted				0
Conversion of stock, shares								6,000,000
Conversion of stock, value								0				0						0
Share-based compensation, related to employee share-based awards										217						217
Excess tax benefit from share-based award activity, net of deferred tax impact										433						433
Net income	1,000														1,000	1,000
Common stock, value, outstanding ending at Dec. 31, 2011						0
Convertible preferred stock, value, outstanding ending at Dec. 31, 2011		615
Total Stockholders' Equity, ending at Dec. 31, 2011	4,899									2,684				(6)	1,606	4,899
Convertible preferred stock, shares, outstanding ending at Dec. 31, 2011		543,000,000
Common stock, shares outstanding ending at Dec. 31, 2011						1,330,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock, net of issuance costs, shares						180,000,000
Issuance of common stock, net of issuance costs, value						0				6,760						6,760
Issuance of common stock for cash upon exercise of stock options, shares	135,505,000					135,000,000
Issuance of common stock for cash upon exercise of stock options, value						0				17						17
Issuance of common stock related to nonemployees for past services, shares						0
Issuance of common stock related to nonemployees for past services, value						0				1						1
Issuance of common stock related to acquisitions, shares						26,000,000
Issuance of common stock related to acquisitions, value						0				274						274
Issuance of common stock settlement of restricted stock units (RSUs)	279,000,000					279,000,000
Shares withheld related to net share settlement of RSUs, shares	(123,000,000)					(123,000,000)
Shares withheld related to net share settlement of RSUs, value	2,862									(2,862)						(2,862)
Conversion of stock into common stock					(543,000,000)
Conversion of stock, amount converted					(615)
Conversion of stock, shares									545,000,000
Conversion of stock, value									0				615						0
Share-based compensation, related to employee share-based awards										1,572						1,572
Excess tax benefit from share-based award activity, net of deferred tax impact										1,033						1,033
Other comprehensive income														8		8
Net income	53														53	53
Common stock, value, outstanding ending at Dec. 31, 2012						0
Convertible preferred stock, value, outstanding ending at Dec. 31, 2012		0
Total Stockholders' Equity, ending at Dec. 31, 2012	$ 11,755									$ 10,094				$ 2	$ 1,659	$ 11,755
Convertible preferred stock, shares, outstanding ending at Dec. 31, 2012		0
Common stock, shares outstanding ending at Dec. 31, 2012						2,372,000,000

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Other Income (Expense), Net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other Income and Expenses [Abstract]
Interest income	$ 14	$ 4	$ 1
Foreign currency exchange losses, net	(9)	(29)	(1)
Other	2	6	(2)
Other income (expense), net	$ 7	$ (19)	$ (2)

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Geographical Information (Tables)

12 Months Ended

Dec. 31, 2012

Segments, Geographical Areas [Abstract]

Revenue by Geographic Area

The following table sets forth revenue and property and equipment, net by geographic area (in millions):  

	Year Ended December 31,
	2012		2011		2010
Revenue:
United States	$	2,578	$	2,067	$	1,223
Rest of the world(1)	2,511		1,644		751
Total revenue	$	5,089	$	3,711	$	1,974

(1) No individual country exceeded 10% of our total revenue for any period presented.

Property and Equipment, Net by Geographic Area

1) No individual country exceeded 10% of our total revenue for any period presented.

	December 31,
	2012		2011
Property and equipment, net:
United States	$	2,110	$	1,444
Rest of the world(1)	281		31
Total property and equipment, net	$	2,391	$	1,475

(1) No individual c

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Income Taxes - Narrative (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Tax Disclosure
Tax effect of share-based compensation	$ 1,033,000,000	$ 433,000,000	$ 107,000,000
Valuation allowance, deferred tax assets	37,000,000	9,000,000
Tax-effected benefit to be recognized in additional paid in capital if net operating loss carryforward is utilized	2,170,000,000
Event Causing Ownership Change and Loss in Net Operating Loss and Tax Credit Carryforward, Cumulative Stock Ownership Change Threshhold	50.00%
Event Causing Ownership Change and Loss in Net Operating Loss and Tax Credit Carryforward, Change in Ownership Percentage Over Period	3 years
Unrecognized tax benefits, interest on income taxes expense	3,000,000
Unrecognized tax benefits, income tax penalties expense	1,000,000
Unrecognized tax benefits, income tax penalties and interest accrued	10,000,000	6,000,000
Unrecognized tax benefits	164,000,000	63,000,000	18,000,000	9,000,000
Unrecognized tax benefits that would impact effective tax rate	70,000,000
Income tax refundable	451,000,000	0
Increase in income tax refundable	451,000,000	0	0
Deferred income taxes	186,000,000	30,000,000	(23,000,000)
Internal Revenue Service (IRS)
Income Tax Disclosure
Operating loss carryforwards	5,830,000,000
State and Local Jurisdiction
Income Tax Disclosure
Operating loss carryforwards	7,620,000,000
Tax credit carryforward	$ 181,000,000

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

We prepared the consolidated financial statements in accordance with U.S. generally accepted accounting principles (GAAP). The consolidated financial statements include the accounts of Facebook, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated.

Use of Estimates

Use of Estimates

Conformity with GAAP requires the use of estimates and judgments that affect the reported amounts in the consolidated financial statements and accompanying notes. These estimates form the basis for judgments we make about the carrying values of our assets and liabilities, which are not readily apparent from other sources. We base our estimates and judgments on historical information and on various other assumptions that we believe are reasonable under the circumstances. GAAP requires us to make estimates and judgments in several areas, including, but not limited to, those related to revenue recognition, collectability of accounts receivable, contingent liabilities, fair value of share-based awards, fair value of financial instruments, fair value of acquired intangible assets and goodwill, useful lives of intangible assets and property and equipment, and income taxes. These estimates are based on management's knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ materially from those estimates.

Reclassifications

Reclassifications

We have reclassified certain prior period amounts within our consolidated statements of income and cash flows to conform to our current year presentation. These reclassifications did not affect previously reported revenue, total costs and expenses, income from operations, net income in the consolidated statements of income, or net cash provided by operating activities in the consolidated statements of cash flows.

Revenue Recognition

Revenue Recognition

We generate substantially all of our revenue from advertising and payment processing fees. We recognize revenue once all of the following criteria have been met:

• persuasive evidence of an arrangement exists;

• delivery of Facebook's obligations to our customer has occurred;

• the price is fixed or determinable; and

• collectability of the related receivable is reasonably assured.

Revenue for the years ended December 31, 2012, 2011, and 2010 consists of the following (in millions):

	Year Ended December 31,
	2012		2011		2010
Advertising	$	4,279	$	3,154	$	1,868
Payments and other fees	810		557		106
Total revenue	$	5,089	$	3,711	$	1,974

Advertising

Advertising revenue is generated by displaying ad products on the Facebook website or mobile app and third-party affiliated websites or mobile apps. The arrangements are evidenced by either online acceptance of terms and conditions or contracts that stipulate the types of advertising to be delivered, the timing and the pricing. Marketers pay for ad products either directly or through their relationships with advertising agencies, based on the number of impressions delivered or the number of clicks made by our users. The typical term of an advertising arrangement is approximately 30 days with billing generally occurring after the delivery of the advertisement.

We recognize revenue from the delivery of click-based ads in the period in which a user clicks on the content. We recognize revenue from the display of impression-based ads in the contracted period in which the impressions are delivered. Impressions are considered delivered when an ad is displayed to users.

Payments and Other Fees

We enable Payments from our users to our Platform developers. Our users can transact and make payments on the Facebook Platform by using credit cards, PayPal or other payment methods available on our website. The primary method for users to transact with the developers on the Facebook Platform is via the purchase of our virtual currency, which enables our users to purchase virtual and digital goods in games and apps. Upon the initial sale of our virtual currency, we record consideration received from a user as a deposit.

When a user engages in a payment transaction utilizing our virtual currency for the purchase of a virtual or digital good from a Platform developer, we reduce the user's virtual currency balance by the price of the purchase, which is a price that is solely determined by the Platform developer. We remit to the Platform developer an amount that is based on the total amount of virtual currency redeemed less the processing fee that we charge the Platform developer for the transaction. Our revenue is the net amount of the transaction, representing our processing fee for the service performed. We record revenue on a net basis as we do not consider ourselves to be the principal in the sale of the virtual or digital good to the user.

Our Payments terms and conditions provide for a 30-day claim period subsequent to a Payments transaction during which the customer may dispute the virtual or digital goods transaction. Through the third quarter of 2012, we had deferred recognition of Payments revenue until the expiration of this period as we were unable to make reasonable and reliable estimates of future refunds or chargebacks arising during this claim period, due to lack of historical transactional information. Beginning in the fourth quarter of 2012, we had 24 months of historical transactional information which enabled us to estimate future refunds and chargebacks. Accordingly, in the fourth quarter of 2012, we recorded all Payments revenues at the time of the purchase of the related virtual or digital goods, net of estimated refunds or chargebacks. This change resulted in a one-time increase in Payments revenue in the fourth quarter of 2012 of approximately $66 million as we recognized revenue from four months of transactions.

Other fees, which includes user Promoted Posts and, to a lesser extent, Facebook Gifts, have not been material in all periods presented in our financial statements.

Revenue is recognized net of applicable sales and other taxes.

Cost of Revenue

Cost of Revenue

Our cost of revenue consists primarily of expenses associated with the delivery and distribution of our products. These include expenses related to the operation of our data centers such as facility and server equipment depreciation, facility and server equipment rent expense, energy and bandwidth costs, support and maintenance costs, and salaries, benefits and share-based compensation for certain personnel on our operations teams. Cost of revenue also includes credit card and other transaction fees related to processing customer transactions.

Share-based Compensation

Share-based Compensation

We account for share-based employee compensation plans under the fair value recognition and measurement provisions of GAAP. Those provisions require all share-based payments to employees, including grants of stock options and RSUs, to be measured based on the grant-date fair value of the awards, with the resulting expense generally recognized in our consolidated statements of income over the period during which the employee is required to perform service in exchange for the award.

Prior to January 1, 2011, we granted RSUs (Pre-2011 RSUs) under our 2005 Stock Plan to our employees and members of our board of directors that vested upon the satisfaction of both a service condition and a liquidity condition. The service condition for the majority of these awards is satisfied over four years. The liquidity condition was satisfied six months after our initial public offering (IPO) in May 2012. The vesting condition that was satisfied six months following our IPO did not affect the expense attribution period for the RSUs for which the service condition has been met as of the date of our IPO. This six-month period was not a substantive service condition and, accordingly, beginning on the effectiveness of our IPO in May 2012, we recognized cumulative share-based compensation expense for the portion of the RSUs that had met the service condition, following the accelerated attribution method (net of estimated forfeitures). In the year ended December 31, 2012, we recognized $1.04 billion of share-based compensation expense related to our Pre-2011 RSUs. Refer to Note 11 Stockholders' Equity for disclosure with respect to the settlement of the Pre-2011 RSUs.

RSUs granted on or after January 1, 2011 (Post-2011 RSUs) under our 2005 Stock Plan or 2012 Equity Incentive Plan (2012 Plan)are not subject to a liquidity condition in order to vest, and compensation expense related to these grants is based on the grant date fair value of the RSUs and is recognized on a straight-line basis over the applicable service period. The majority of Post-2011 RSUs are earned over a service period of four to five years, and vested shares will be settled beginning in 2013.

Share-based compensation expense is recorded net of estimated forfeitures in our consolidated statements of income and as such, only those share-based awards that we expect to vest are recorded. We estimate the forfeiture rate based on historical forfeitures of equity awards and adjust the rate to reflect changes in facts and circumstances, if any. We will revise our estimated forfeiture rate if actual forfeitures differ from our initial estimates.

We have historically issued unvested restricted shares to employee stockholders of certain acquired companies. As these awards are generally subject to continued post-acquisition employment, we have accounted for them as post-acquisition share-based compensation expense. We recognize compensation expense equal to the grant date fair value of the common stock on a straight-line basis over the employee's required service period.

During the years ended December 31, 2012, 2011, and 2010, we realized tax benefits from share-based award activity of $1.03 billion, $433 million and $115 million, respectively. These amounts reflect the extent that the total reduction to our income tax liability from share-based award activity was greater than the amount of the deferred tax assets that we had previously recorded in anticipation of these benefits. These amounts are the aggregate of the individual transactions in which the reduction to our income tax liability was greater than the deferred tax assets that we recorded, reduced by any individual transactions in which the reduction to our income tax liability was less than the deferred tax assets that were recorded. These net amounts were recorded as an adjustment to stockholders' equity in each period, as an increase to cash flows from operating activities, and were not recognized in our consolidated statements of income.

The tax benefits realized from share-based award activity of $1.03 billion relate to both the reduction of current year income tax liabilities and the expected refund of $451 million from income tax loss carrybacks to 2010 and 2011.

In addition, we reported excess tax benefits that decreased our cash flows from operating activities and increased our cash flows from financing activities for the years ended December 31, 2012, 2011, and 2010, by $1.03 billion, $433 million, $115 million, respectively. The amounts of these excess tax benefits reflect the total of the individual transactions in which the reduction to our income tax liability was greater than the deferred tax assets that were recorded, but were not reduced by any of the individual transactions in which the reduction to our income tax liability was less than the deferred tax assets that were recorded.

Income Taxes

Income Taxes

We recognize income taxes under the asset and liability method. We recognize deferred income tax assets and liabilities for the expected future consequences of temporary differences between the financial reporting and tax bases of assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to apply to taxable income for the years in which differences are expected to reverse. We recognize the effect on deferred income taxes of a change in tax rates in income in the period that includes the enactment date.

We record a valuation allowance to reduce our deferred tax assets to the net amount that we believe is more likely than not to be realized. We consider all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income and ongoing tax planning strategies in assessing the need for a valuation allowance.

We recognize tax benefits from uncertain tax positions only if we believe that it is more likely than not that the tax position will be sustained on examination by the taxing authorities based on the technical merits of the position. We make adjustments to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate. The provision for income taxes includes the effects of any reserves that are considered appropriate, as well as the related net interest and penalties.

Advertising Expense

Advertising Expense

Advertising costs are expensed when incurred and are included in marketing and sales expenses in the accompanying consolidated statements of income. We incurred advertising expenses of $67 million, $28 million, and $8 million for the years ended December 31, 2012, 2011, and 2010, respectively.

Cash and Cash Equivalents, and Marketable Securities

Cash and Cash Equivalents, and Marketable Securities

Cash and cash equivalents primarily consist of cash on deposit with banks and investments in money market funds, and U.S. government and U.S. government agency securities with maturities of 90 days or less from the date of purchase.

We hold investments in marketable securities, consisting of U.S. government and U.S. government agency securities. We classify our marketable securities as available-for-sale investments in our current assets because they represent investments of cash available for current operations. Our available-for-sale investments are carried at estimated fair value with any unrealized gains and losses, net of taxes, included in accumulated other comprehensive income/(loss) in stockholders' equity. Unrealized losses are charged against other income (expense), net when a decline in fair value is determined to be other-than-temporary. We have not recorded any such impairment charge in the periods presented. We determine realized gains or losses on sale of marketable securities on a specific identification method, and record such gains or losses as other income (expense), net.

We classify certain restricted cash balances within prepaid expenses and other current assets and other assets on the accompanying consolidated balance sheets based upon the term of the remaining restrictions.

Non-Marketable Securities

Non-Marketable Securities

We invest in certain investment funds that are not publicly traded. We carry these investments at cost because we do not have significant influence over the underlying investee. We assess for any other-than-temporary impairment at least on an annual basis. No impairment charge has been recorded to-date on our non-marketable securities. We classify these investments within other assets on the accompanying consolidated balance sheets.

Derivative Financial Instruments

Derivative Financial Instruments

We account for derivative instruments as either assets or liabilities and carry them at fair value. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash-flow hedges, the effective portion of the gain or loss on the derivative instruments is initially reported as a separate component of accumulated other comprehensive income (AOCI) in shareholders' equity and is subsequently recognized in earnings when the hedge exposure is recognized in earnings. The ineffective portion of the gain or loss on the derivative instruments, if any, is recognized in earnings. To receive hedge accounting treatment, a cash flow hedge must be highly effective in offsetting changes to expected future cash flows on the hedged transaction.

In October 2012 we entered into an interest rate swap agreement to hedge our exposure to interest rate fluctuation with respect to our $1.5 billion floating rate three-year unsecured term loan facility. The critical terms of the interest rate swap agreement and the related debt agreement match and allow us to designate the interest rate swap as a highly effective cash flow hedge under GAAP. We periodically assess the effectiveness of our hedged transaction. The interest rate swap agreement is currently our only derivative instrument and is not used for trading purpose. Refer to Note 9 Long-term Debt for further disclosure on the interest rate swap agreement.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

We apply fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. We define fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities, which are required to be recorded at fair value, we consider the principal or most advantageous market in which we would transact and the market-based risk measurements or assumptions that market participants would use in pricing the asset or liability, such as risks inherent in valuation techniques, transfer restrictions and credit risk. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1-Quoted prices in active markets for identical assets or liabilities.

Level 2-Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3-Inputs that are generally unobservable and typically reflect management's estimate of assumptions that market participants would use in pricing the asset or liability.

Our valuation techniques used to measure the fair value of money market funds and marketable debt securities were derived from quoted prices in active markets for identical assets or liabilities and our valuation technique used to measure the fair value of our derivative instrument was based on a model-driven valuation using significant inputs derived from or corroborated by observable market data.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded and carried at the original invoiced amount less an allowance for any potential uncollectible amounts. We make estimates for the allowance for doubtful accounts based upon our assessment of various factors, including historical experience, the age of the accounts receivable balances, credit quality of our customers, current economic conditions, and other factors that may affect customers' ability to pay.

Property and Equipment

Property and Equipment

Property and equipment, which includes amounts recorded under capital leases, are stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets or the remaining lease term, in the case of a capital lease, whichever is shorter.

The estimated useful lives of property and equipment are described below:

Property and Equipment	Useful Life
Network equipment	Three to four years
Buildings	15 to 20 years
Computer software, office equipment and other	Two to five years
Leased equipment and leasehold improvements	Lesser of estimated useful life or remaining lease term

Land and assets held within construction in progress are not depreciated. Construction in progress is related to the construction or development of property and equipment that have not yet been placed in service for their intended use.

The cost of maintenance and repairs is expensed as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from their respective accounts, and any gain or loss on such sale or disposal is reflected in income from operations.

Lease Obligations

Lease Obligations

We lease office space, data centers, and equipment under non-cancelable capital and operating leases with various expiration dates through 2027. Certain of the operating lease agreements contain rent holidays, rent escalation provisions, and purchase options. Rent holidays and rent escalation provisions are considered in determining the straight-line rent expense to be recorded over the lease term. The lease term begins on the date of initial possession of the leased property for purposes of recognizing lease expense on a straight-line basis over the term of the lease. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably assured at lease inception.

Loss Contingencies

Loss Contingencies

We are involved in various lawsuits, claims, investigations and proceedings that arise in the ordinary course of business. We record a liability when we believe that it is both probable that a loss has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. We review these provisions at least quarterly and adjust these provisions accordingly to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information.

Business Combinations

Business Combinations

We allocate the fair value of purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets. During the measurement period, which is one year from the acquisition date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings.

Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets

Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets

We evaluate the recoverability of property and equipment and amortizable intangible assets for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. We have not recorded any such impairment charge during the years presented.

We review goodwill for impairment at least annually or more frequently if events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. We have elected to first assess the qualitative factors to determine whether it is more likely than not that the fair value of our single reporting operating unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment under the new authoritative guidance issued by the Financial Accounting Standards Board (FASB). If we determine that it is more likely than not that its fair value is less than its carrying amount, then the two-step goodwill impairment test is performed. The first step, identifying a potential impairment, compares the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the second step would need to be performed; otherwise, no further step is required. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying amount of the goodwill. Any excess of the goodwill carrying amount over the applied fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value. As of December 31, 2012, no impairment of goodwill has been identified.

Acquired amortizable intangible assets, which are included in goodwill and intangible assets, net, are amortized on a straight-line basis over the estimated useful lives of the assets. The estimated remaining useful lives for intangible assets range from less than one year to 17 years.

In addition to the recoverability assessment, we routinely review the remaining estimated useful lives of property and equipment and amortizable intangible assets. If we reduce the estimated useful life assumption for any asset, the remaining unamortized balance would be amortized or depreciated over the revised estimated useful life.

Deferred Revenue and Deposits

Deferred Revenue and Deposits

Deferred revenue consists of billings in advance of revenue recognition. Deposits relate to unused virtual currency held by our users. Once this virtual currency is utilized by a user, approximately 70% of this amount would then be payable to the Platform developer and the balance would be recognized as revenue.

Deferred revenue and deposits consists of the following (in millions):

	December 31,
	2012		2011
Deferred revenue	$	8	$	75
Deposits	22		15
Total deferred revenue and deposits	$	30	$	90

Foreign Currency

Foreign Currency

Generally the functional currency of our international subsidiaries is the local currency. We translate the financial statements of these subsidiaries to U.S. dollars using month-end rates of exchange for assets and liabilities, and average rates of exchange for revenue, costs, and expenses. Translation gains and losses are recorded in accumulated other comprehensive income (loss) as a component of stockholders' equity. Net losses resulting from foreign exchange transactions were $9 million, $29 million and $1 million for the years ended December 31, 2012, 2011 and 2010, respectively. These losses were recorded as other income (expense), net on our consolidated statements of income.

Credit Risk and Concentration

Credit Risk and Concentration

Financial instruments owned by the company that are potentially subject to concentrations of credit risk consist primarily of cash, cash equivalents, restricted cash, marketable securities, accounts receivable, and derivative instruments. Cash equivalents consist of short-term money market funds and U.S. government and U.S. government agency securities, which are deposited with reputable financial institutions. Marketable securities consist of investments in U.S. government and U.S. government agency securities. Our investment policy limits investment instruments to U.S. government and U.S. government agency securities with the main objective of preserving capital and maintaining liquidity.

Accounts receivable are typically unsecured and are derived from revenue earned from customers across different industries and countries. We generated 51%, 56%, and 62% of our revenue for the years ended December 31, 2012, 2011, and 2010, respectively, from marketers and Platform developers based in the United States, with the majority of revenue outside of the United States coming from customers located in western Europe, Canada, Australia, and Brazil.

We perform ongoing credit evaluations of our customers, and generally do not require collateral. We maintain an allowance for estimated credit losses. During the years ended December 31, 2012, 2011, and 2010, our bad debt expenses were $9 million, $8 million, and $9 million, respectively. In the event that accounts receivable collection cycles deteriorate, our operating results and financial position could be adversely affected.

Revenue from one customer, Zynga, represented 12% of total revenue for the year ended December 31, 2011. Revenue from Zynga consisted of payments processing fees related to their sale of virtual goods and from direct advertising purchased by Zynga. No customer represented 10% or more of total revenue during the years ended December 31, 2012 and 2010.

Segments

evenue from one customer, Zynga, represented 12% of total revenue for the year ended December 31, 2011. Revenue from Zynga consisted of payments processing fees related to their sale of virtual goods and from direct advertising purchased by Zynga. No customer represented 10% or more of total revenue during the years ended December 31, 2012 and 2010.

Segments

Our chief operating decision-maker is our Chief Executive Officer who reviews financial information presented on a consolidated basis. There are no segment managers who are held accountable by the chief operating decision-maker, or anyone else, for operations, operating results, and planning for levels or components below the consolidated unit level. Accordingly, we have determined that we have a single reporting segment and operating unit structure.

Recently Issued and Adopted Accounting Pronouncement

Recently Issued and Adopted Accounting Pronouncement

Comprehensive Income

In May 2011, the FASB issued guidance that changed the requirement for presenting "Comprehensive Income" in the consolidated financial statements. The update requires an entity to present the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and should be applied retrospectively. We adopted this new guidance on January 1, 2012.

Goodwill Impairment Testing

In September 2011, the FASB issued an amendment to an existing accounting standard which provides entities an option to perform a qualitative assessment to determine whether further impairment testing on goodwill is necessary. An entity now has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step impairment test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. This standard is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We adopted this new standard on January 1, 2012 and the adoption did not have a material impact on our financial statements.

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Summary of Significant Accounting Policies - Revenue Recognition (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Change in Recognition of Refund or Chargeback Reserve
Accounting Policies [Abstract]
Advertising	$ 4,279	$ 3,154	$ 1,868
Payments and other fees	810	557	106
Total revenue	$ 5,089	$ 3,711	$ 1,974
Payment transaction claim, term	30 days
Change in Accounting Estimate
Change in accounting estimate, financial effect				66

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Allocation of Estimated Fair Value of Assets Acquired and Liabilities Assumed

The following table summarizes the allocation of the fair values of the assets acquired and liabilities assumed and the related useful lives, where applicable:

	Instagram, Inc.				Other
	(in millions)			Useful lives (in years)	(in millions)			Useful lives (in years)
Amortizable intangible assets:
Acquired technology	$	74		5	$	20		3 - 5
Tradename and other	64			2 - 7	8			2 - 3
Net liabilities assumed	(1		)		(4		)
Deferred tax liabilities	(49		)		(9		)
Net assets acquired	$	88			$	15
Goodwill	433				72
Total fair value considerations	$	521			$	87

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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities
Net income	$ 53	$ 1,000	$ 606
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	649	323	139
Loss on write-off of equipment	15	4	3
Share-based compensation	1,572	217	20
Deferred income taxes	(186)	(30)	23
Tax benefit from share-based award activity	1,033	433	115
Excess tax benefit from share-based award activity	(1,033)	(433)	(115)
Changes in assets and liabilities:
Accounts receivable	(170)	(174)	(209)
Income tax refundable	(451)	0	0
Prepaid expenses and other current assets	(14)	(24)	(38)
Other assets	2	(5)	(6)
Accounts payable	1	6	12
Platform partners payable	(2)	96	75
Accrued expenses and other current liabilities	160	37	20
Deferred revenue and deposits	(60)	49	37
Other liabilities	43	50	16
Net cash provided by operating activities	1,612	1,549	698
Cash flows from investing activities
Purchases of property and equipment	(1,235)	(606)	(293)
Purchases of marketable securities	(10,307)	(3,025)	0
Sales of marketable securities	2,100	113	0
Maturities of marketable securities	3,333	516	0
Investments in non-marketable equity securities	(2)	(3)	0
Acquisitions of businesses, net of cash acquired, and purchases of intangible and other assets	(911)	(24)	(22)
Change in restricted cash and deposits	(2)	6	(9)
Net cash used in investing activities	(7,024)	(3,023)	(324)
Cash flows from financing activities
Net proceeds from issuance of common stock	6,760	998	500
Taxes paid related to net share settlement of equity awards	(2,862)	0	0
Proceeds from exercise of stock options	17	28	6
Proceeds from long-term debt, net of issuance cost	1,496	0	250
Repayments of long-term debt	0	(250)	0
Proceeds from sale and lease-back transactions	205	170	0
Principal payments on capital lease obligations	(366)	(181)	(90)
Excess tax benefit from share-based award activity	1,033	433	115
Net cash provided by financing activities	6,283	1,198	781
Effect of exchange rate changes on cash and cash equivalents	1	3	(3)
Net increase (decrease) in cash and cash equivalents	872	(273)	1,152
Cash and cash equivalents at beginning of period	1,512	1,785	633
Cash and cash equivalents at end of period	2,384	1,512	1,785
Cash paid during the period for:
Interest	38	28	23
Income taxes, net	53	197	261
Non-cash investing and financing activities:
Fair value of shares issued related to acquisitions of businesses and other assets	274	58	60
Net change in accounts payable and accrued expenses and other liabilities
Non-cash investing and financing activities:
Capital expenditures incurred but not yet paid	(40)	135	47
Capital Lease Obligations
Non-cash investing and financing activities:
Capital expenditures incurred but not yet paid	$ 340	$ 473	$ 217

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Accounts receivable, allowances for doubtful accounts	$ 22	$ 17
Stockholders' equity:
Common stock, par value	$ 0.000006	$ 0.000006
Convertible Preferred Stock
Stockholders' equity:
Convertible preferred stock, par value	$ 0.000006	$ 0.000006
Convertible preferred stock, shares authorized	0	569,000,000
Convertible preferred stock, shares issued	0	543,000,000
Convertible preferred stock, shares, outstanding	0	543,000,000
Class A Common Stock
Stockholders' equity:
Common stock, par value	$ 0.000006
Common stock, shares authorized	5,000,000,000	4,141,000,000
Common stock, shares, issued	1,671,277,621	117,000,000
Common stock, shares outstanding	1,671,277,621	117,000,000
Outstanding shares subject to repurchase	2,000,000	1,000,000
Class B Common Stock
Stockholders' equity:
Common stock, par value	$ 0.000006
Common stock, shares authorized	4,141,000,000	4,141,000,000
Common stock, shares, issued	701,427,574	1,213,000,000
Common stock, shares outstanding	701,427,574	1,213,000,000
Outstanding shares subject to repurchase	11,000,000	2,000,000

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Commitments

Leases

We entered into various capital lease arrangements to obtain property and equipment for our operations. Additionally, on occasion we have purchased property and equipment for which we have subsequently obtained capital financing under sale-leaseback transactions. These agreements are typically for three years except for building leases which are for 15 years, with interest rates ranging from 1% to 13%. The leases are secured by the underlying leased buildings, leasehold improvements, and equipment. We have also entered into various non-cancelable operating lease agreements for certain of our offices, equipment, land and data centers with original lease periods expiring between now and 2027. We are committed to pay a portion of the related actual operating expenses under certain of these lease agreements. Certain of these arrangements have free rent periods or escalating rent payment provisions, and we recognize rent expense under such arrangements on a straight-line basis.

The following is a schedule, by years, of the future minimum lease payments required under non-cancelable capital and operating leases as of December 31, 2012 (in millions):

	Capital Leases			Operating Leases
2013	$	398		$	142
2014	278			128
2015	125			117
2016	20			110
2017	15			102
Thereafter	143			252
Total minimum lease payments	$	979		$	851
Less: amount representing interest and taxes	(123		)
Less: current portion of the present value of minimum lease payments	(365		)
Capital lease obligations, net of current portion	$	491

Operating lease expenses totaled $196 million, $219 million, and $178 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Other contractual commitments

We also have $749 million of non-cancelable contractual commitments as of December 31, 2012, primarily related to equipment and supplies for our data center operations, and, to a lesser extent, construction of our data center sites. The majority of these commitments are due in 2013.

Contingencies

Legal Matters

Beginning on May 22, 2012, multiple putative class actions, derivative actions, and individual actions were filed in state and federal courts in the United States and in other jurisdictions against us, our directors, and/or certain of our officers alleging violation of securities laws or breach of fiduciary duties in connection with our IPO and seeking unspecified damages. We believe these lawsuits are without merit, and we intend to continue to vigorously defend them. On October 4, 2012, on our motion, the vast majority of the cases in the United States, along with multiple cases filed against The NASDAQ OMX Group, Inc. and The Nasdaq Stock Market LLC (collectively referred to herein as NASDAQ) alleging technical and other trading-related errors by NASDAQ in connection with our IPO, were ordered centralized for coordinated or consolidated pre-trial proceedings in the United States District Court for the Southern District of New York. In addition, the events surrounding our IPO have become the subject of various government inquiries, and we are cooperating with those inquiries.

In the opinion of management, there was not at least a reasonable possibility we may have incurred a material loss, or a material loss in excess of a recorded accrual, with respect to loss contingencies relating to the matters set forth above. However, the outcome of litigation is inherently uncertain. Therefore, although management considers the likelihood of such an outcome to be remote, if one or more of these legal matters were resolved against us in the same reporting period for amounts in excess of management's expectations, our consolidated financial statements of a particular reporting period could be materially adversely affected.

We are also party to various legal proceedings and claims which arise in the ordinary course of business. Among these pending legal matters, two cases are currently scheduled for trial in the near future:  Summit 6 LLC v. Research in Motion Corporation et al., Case No. 3:11cv00367, is scheduled to begin trial as early as February 19, 2013, in the U.S. District Court for the Northern District of Texas, and Timelines, Inc. v. Facebook, Inc., Case No. 1:2011cv06867, is scheduled to begin trial on April 22, 2013, in the U.S. District Court for the Northern District of Illinois.  In the Summit 6 case, the plaintiffs allege that Facebook infringes certain patents held by the plaintiffs.  In the Timelines case, the plaintiffs allege that Facebook infringes a trademark held by the plaintiffs. In both cases, the plaintiffs are seeking significant monetary damages and equitable relief.

We believe the claims made by the Summit 6 plaintiffs and the Timelines plaintiffs are without merit, and we intend to continue to defend ourselves vigorously in both cases.  Although the outcome of litigation is inherently uncertain, we do not believe the possibility of loss in either of these cases is probable.  We are unable to estimate a range of loss, if any, that could result were there to be an adverse final decision, and we have not accrued a liability for either matter.  If an unfavorable outcome were to occur in the Summit 6 case and/or the Timelines case, it is possible that the impact could be material to our results of operations in the period(s) in which any such outcome becomes probable and estimable.

Indemnifications

In the normal course of business, to facilitate transactions of services and products, we have agreed to indemnify certain parties with respect to certain matters. We have agreed to hold certain parties harmless against losses arising from a breach of representations or covenants, or out of intellectual property infringement or other claims made by third parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, we have entered into indemnification agreements with our officers, directors, and certain employees, and our certificate of incorporation and bylaws contain similar indemnification obligations.

It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, payments made by us under these agreements have not had a material impact on our consolidated financial position, results of operations or cash flows. In our opinion, as of December 31, 2012, there was not at least a reasonable possibility we had incurred a material loss with respect to indemnification of such parties. We have not recorded any liability for costs related to indemnification through December 31, 2012.

XML

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2012	Jun. 29, 2012	Jan. 29, 2013 Class A Common Stock	Jan. 29, 2013 Class B Common Stock
Document Information
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Trading Symbol	FB
Entity Registrant Name	FACEBOOK INC
Entity Central Index Key	0001326801
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding			1,684,185,170	697,948,924
Entity Public Float		$ 47,206,114,899
Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

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Stockholders' Equity

12 Months Ended

Dec. 31, 2012

Equity [Abstract]

Stockholders' Equity

Stockholders' Equity

Initial Public Offering

In May 2012, we completed our IPO in which we issued and sold 180,000,000 shares of Class A common stock at a public offering price of $38.00 per share and the selling stockholders sold 241,233,615 shares of Class A common stock. We did not receive any proceeds from the sale of shares by the selling stockholders. The total net proceeds received from the IPO were $6.8 billion after deducting underwriting discounts and commissions of $75 million and other offering expenses of approximately $7 million.

Convertible Preferred Stock

Upon the closing of our IPO, all shares of our then-outstanding convertible preferred stock, as shown on the table below, automatically converted into an aggregate of 545,401,443 shares of our Class B common stock.

The following table summarizes the convertible preferred stock outstanding immediately prior to the conversion into common stock, and the rights and preferences of our respective series as of December 31, 2011 and immediately prior to the conversion into common stock:

	Shares		Aggregate Liquidation Preference		Dividend Per Share Per Annum		Conversion Ratio Per Share
	Authorized	Issued and Outstanding
	(in thousands)	(in thousands)	(in millions)
Series A	134,747	133,055	$	1	$	0.00036875	1.000000
Series B	226,032	224,123	13		0.00456		1.004910
Series C	95,768	91,410	26		0.02297335		1.004909
Series D	67,454	50,591	375		0.593		1.012561
Series E	45,000	44,038	200		0.3633264		1.000000
Total	569,001	543,217	$	615

Common Stock

Our certificate of incorporation authorizes the issuance of Class A common stock and Class B common stock. As of December 31, 2012, we are authorized to issue 5,000,000,000 shares of Class A common stock and 4,141,000,000 shares of Class B common stock, each with a par value of $0.000006 per share. Holders of our Class A common stock and Class B common stock are entitled to dividends when, as and if, declared by our board of directors, subject to the rights of the holders of all classes of stock outstanding having priority rights to dividends. As of December 31, 2012, we did not declare any dividends and our credit facilities contain restrictions on our ability to pay dividends. The holder of each share of Class A common stock is entitled to one vote, while the holder of each share of Class B common stock is entitled to ten votes. Shares of our Class B common stock are convertible into an equivalent number of shares of our Class A common stock and generally convert into shares of our Class A common stock upon transfer. Class A common stock and Class B common stock are referred to as common stock throughout the notes to these financial statements, unless otherwise noted.

Upon the closing of our IPO, an aggregate of 335,943,024 shares of Class B common stock were converted into Class A common stock. As of December 31, 2012, there were 1,671,277,621 shares and 701,427,574 shares of Class A common stock and Class B common stock, respectively, issued and outstanding.

Share-based Compensation Plans

We maintain three share-based employee compensation plans: the 2012 Plan, the 2005 Stock Plan and the 2005 Officers' Stock Plan (collectively, Stock Plans). Our 2012 Plan was approved by our board of directors in January 2012 and adopted by our stockholders in April 2012. The 2012 Plan, effective on May 17, 2012, serves as the successor to our 2005 Stock Plan and provides for the issuance of incentive and nonstatutory stock options, restricted stock awards, stock appreciation rights, RSUs, performance shares and stock bonuses to qualified employees, directors and consultants. No new awards will be issued under the 2005 Stock Plan as of the effective date of the 2012 Plan. Outstanding awards under the 2005 Stock Plan continue to be subject to the terms and conditions of the 2005 Stock Plan. Shares available for grant under the 2005 Stock Plan, which were reserved but not issued or subject to outstanding awards under the 2005 Stock Plan as of the effective date, were added to the reserves of the 2012 Plan.

We have initially reserved 25,000,000 shares of our Class A common stock for issuance under our 2012 Plan. The number of shares reserved for issuance under our 2012 Plan will increase automatically on the first day of January of each of 2013 through 2022 by a number of shares of Class A common stock equal to the lesser of (i) 2.5% of the total outstanding shares of our common stock as of the immediately preceding December 31st or (ii) a number of shares determined by the board of directors. The maximum term for stock options granted under the 2012 Plan may not exceed ten years from the date of grant. Our 2012 Plan will terminate ten years from the date of approval unless it is terminated earlier by our compensation committee.

The 2005 Officers' Stock Plan provides for up to 120,000,000 shares of incentive and nonstatutory stock options to certain of our employees or officers. The 2005 Officers' Stock Plan will terminate ten years after its adoption unless terminated earlier by our compensation committee. Stock options become vested and exercisable at such times and under such conditions as determined by our compensation committee on the date of grant. In November 2005, we issued a nonstatutory stock option to our CEO to purchase 120,000,000 shares of our Class B common stock under the 2005 Officers' Stock Plan. As of December 31, 2012, the option had been partially exercised in respect of 60,000,000 shares with the remainder remaining outstanding and fully vested, and no options were available for future issuance under the 2005 Officers' Stock Plan.

The following table summarizes the stock option and RSU award activities under the Stock Plans for the year ended December 31, 2012:

			Shares Subject to Options Outstanding							Outstanding RSUs
	Shares Available for Grant(1)		Number of Shares		Weighted Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value(2)		Outstanding RSUs(3)		Weighted Average Grant Date Fair Value
	(in thousands)		(in thousands)				(in years)	(in millions)		(in thousands)
Balance as of December 31, 2011	52,318		258,539		$	0.47	4.38	$	7,360	378,772		$	6.83
Stock options exercised	—		(135,505	)	0.12					—
Stock options forfeited/cancelled	213		(213	)	1.41					—
RSUs granted	(41,252	)	—							41,252		32.60
RSUs settled	—		—							(278,846	)	3.02
Shares withheld related to net share settlement of RSUs	122,757		—							—
RSUs forfeited and cancelled	12,955		—							(12,955	)	20.00
2012 Equity Incentive Plan shares authorized	25,000		—							—
Balance as of December 31, 2012	171,991		122,821		$	0.85	3.79	$	3,166	128,223		$	22.08
Stock options vested and expected to vest as of December 31, 2012			122,791		$	0.85	3.79	$	3,166
Stock options exercisable as of December 31, 2012			113,688		$	0.34	3.53	$	2,989

(1) After excluding 195 thousand restricted stock awards included in the table above, 171,796 thousand shares are available for grant under the Stock Plans as of December 31, 2012.

(2) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the assessed fair value of our common stock as of December 31, 2011 and the closing market price of our common stock as of December 31, 2012.

(3) During the year ended December 31, 201269,196 thousand RSUs were vested and the total grant date fair value of these RSUs vested is $9.14. As of December 31, 2012 and 2011, we have 113,044 thousand and 153,943 thousand of unvested RSUs.

Under net settlement procedures currently applicable to our outstanding RSUs for current and former employees, upon each settlement date, RSUs are withheld to cover the required withholding tax, which is based on the value of the RSU on the settlement date as determined by the closing price of our common stock on the trading day immediately preceding the applicable settlement date. The remaining amounts are delivered to the recipient as shares of our common stock. We settled 279 million of Pre-2011 RSUs in 2012 of which 273 million RSUs were net settled by withholding 123 million shares, which represented the employees' minimum statutory obligation for each such employee's applicable income and other employment taxes and remitted cash totaling of $2.86 billion to the appropriate tax authorities. The amount remitted to the tax authorities for the employees' tax obligation to the tax authorities was reflected as a financing activity within our consolidated statements of cash flows. These shares withheld by us as a result of the net settlement of Pre-2011 RSUs are no longer considered issued and outstanding, thereby reducing our shares outstanding used to calculate earnings per share. These shares are returned to the reserves and are available for future issuance under the 2012 Plan.

We estimate the fair value of stock options granted using the Black-Scholes-Merton single option valuation model, which requires inputs such as expected term, expected volatility and risk-free interest rate. Further, the estimated forfeiture rate of awards also affects the amount of aggregate compensation. These inputs are subjective and generally require significant analysis and judgment to develop.

We estimate the expected term based upon the historical behavior of our employees for employee grants. We estimate expected volatility based on a study of publicly traded industry peer companies. The forfeiture rate is derived primarily from our historical data, and the risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues. Our dividend yield is 0%, since we have not paid, and do not expect to pay, dividends.

The fair values of employee options granted during 2010 have been estimated as of the date of grant using the following weighted-average assumptions.

	December 31, 2010
Expected term from grant date (in years)	7.15
Risk-free interest rate	1.69%
Expected volatility	0.46
Dividend yield	—

The weighted-average fair value of employee options granted during the year ended December 31, 2010 was $5.26 per share. There were no options granted for the years ended December 31, 2012 and 2011.

The following table summarizes additional information regarding outstanding and exercisable options under the Stock Plans at

December 31, 2012:

	Options Outstanding				Options Exercisable
Exercise Price (Range)	Number of Shares	Weighted- Average Remaining Life	Weighted- Average Exercise Price		Number of Shares	Weighted- Average Exercise Price
	(in thousands)	(in years)			(in thousands)
$0.00 - 0.04	5,381	2.65	$	0.04	5,381	$	0.04
0.06	63,379	2.86	0.06		63,379	0.06
0.10 - 0.18	18,096	3.66	0.15		18,096	0.15
0.29 - 0.33	14,701	4.40	0.31		14,701	0.31
1.78	4,693	5.59	1.78		3,701	1.78
1.85	4,865	6.04	1.85		3,938	1.85
2.95	2,506	6.64	2.95		1,567	2.95
3.23	4,500	6.82	3.23		2,925	3.23
10.39	3,500	7.56	10.39		—	—
15.00	1,200	7.81	15.00		—	—
	122,821	3.79	$	0.85	113,688	$	0.34

The aggregate intrinsic value of the options exercised in the years ended December 31, 2012, 2011, and 2010 was $4.23 billion, $2.38 billion and $492 million, respectively. The total grant date fair value of stock options vested during the years ended December 31, 2012, 2011, and 2010 was $5 million, $6 million and $16 million, respectively.

As of December 31, 2012, there was $2.21 billion of unrecognized share-based compensation expense, of which $1.96 billion is related to RSUs, and $244 million is related to restricted shares and stock options. This unrecognized compensation expense is expected to be recognized over a weighted-average period of approximately three years.

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CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue	$ 5,089	$ 3,711	$ 1,974
Costs and expenses:
Cost of revenue	1,364	860	493
Research and development	1,399	388	144
Marketing and sales	896	393	167
General and administrative	892	314	138
Total costs and expenses	4,551	1,955	942
Income from operations	538	1,756	1,032
Interest and other income (expense), net:
Interest expense	(51)	(42)	(22)
Other income (expense), net	7	(19)	(2)
Income before provision for income taxes	494	1,695	1,008
Provision for income taxes	441	695	402
Net income	53	1,000	606
Less: Net income attributable to participating securities	21	332	234
Net income attributable to Class A and Class B common stockholders	32	668	372
Earnings per share attributable to Class A and Class B common stockholders:
Basic	$ 0.02	$ 0.52	$ 0.34
Diluted	$ 0.01	$ 0.46	$ 0.28
Weighted average shares used to compute earnings per share attributable to Class A and Class B common stockholders:
Basic	2,006	1,294	1,107
Diluted	2,166	1,508	1,414
Share-based compensation expense included in costs and expenses:
Share-based compensation expense	1,572	217	20
Cost of revenue
Share-based compensation expense included in costs and expenses:
Share-based compensation expense	88	9	0
Research and development
Share-based compensation expense included in costs and expenses:
Share-based compensation expense	843	114	9
Marketing and sales
Share-based compensation expense included in costs and expenses:
Share-based compensation expense	306	37	2
General and administrative
Share-based compensation expense included in costs and expenses:
Share-based compensation expense	$ 335	$ 57	$ 9

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Fair Value Measurements

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurement

The following table summarizes, for assets or liabilities measured at fair value, the respective fair value and the classification by level of input within the fair value hierarchy (in millions):  

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents:
Money market funds	$	871	$	871	$	—	$	—
Marketable securities:
U.S. government securities	5,165		5,165		—		—
U.S. government agency securities	2,077		2,077		—		—
Total cash equivalents and marketable securities	$	8,113	$	8,113	$	—	$	—
Other current liabilities:
Contingent consideration liability	$	4	$	—	$	—	$	4
Other liabilities:
Derivative financial instrument	$	4	$	—	$	4	$	—

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3
Cash equivalents:
Money market funds	$	892	$	892	—		—
U.S. government securities	60		60		—		—
U.S. government agency securities	50		50		—		—
Total cash equivalents	1,002		1,002		—		—
Marketable securities:
U.S. government securities	1,415		1,415		—		—
U.S. government agency securities	981		981		—		—
Total cash equivalents and marketable securities	$	3,398	$	3,398	$	—	$	—

There was no contingent consideration liability or interest rate swap as of December 31, 2011.

Our Level 2 derivative financial instrument represents our interest rate swap agreement which is valued based on a valuation model using significant inputs derived from or corroborated by observable market data.

We estimate the fair value of our Level 3 contingent consideration liability based on the probability assessment of the earn-out criteria. In developing these estimates, we consider factors not observed in the market and thus this represents a Level 3 measurement. Level 3 instruments are valued based on unobservable inputs that are supported by little or no market activity and reflect our own assumptions in measuring fair value. Our fair value estimate of this liability was $6 million at the date of acquisition. Changes in the fair value of the contingent consideration liability subsequent to the acquisition date, such as changes in the probability assessment and our stock prices, are recognized in earnings in the period when the change in the estimated fair value occurs.

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Cash and Cash Equivalents, and Marketable Securities

12 Months Ended

Dec. 31, 2012

Cash and Cash Equivalents, and Marketable Securities [Abstract]

Cash and Cash Equivalents, and Marketable Securities

Cash and Cash Equivalents, and Marketable Securities

The following table sets forth the cash, cash equivalents and marketable securities for the periods presented (in millions):

	December 31,
	2012		2011
Cash and cash equivalents:
Cash	$	1,513	$	510
Cash equivalents:
Money market funds	871		892
U.S. government securities	—		60
U.S. government agency securities	—		50
Total cash and cash equivalents	2,384		1,512
Marketable securities:
U.S. government securities	5,165		1,415
U.S. government agency securities	2,077		981
Total marketable securities	7,242		2,396
Total cash, cash equivalents and marketable securities	$	9,626	$	3,908

The gross unrealized gains or losses on our marketable securities as of December 31, 2012 and 2011 were not significant. In addition, there were no securities in a continuous loss position for 12 months or longer as of December 31, 2012 and 2011.

The following table classifies our marketable securities by contractual maturities: (in millions):

	December 31,
	2012		2011
Due in one year	$	4,815	$	1,964
Due in one to two years	2,427		432
Total	$	7,242	$	2,396

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Revenue by type

Revenue for the years ended December 31, 2012, 2011, and 2010 consists of the following (in millions):

	Year Ended December 31,
	2012		2011		2010
Advertising	$	4,279	$	3,154	$	1,868
Payments and other fees	810		557		106
Total revenue	$	5,089	$	3,711	$	1,974

Estimated useful lives of property and equipment

The estimated useful lives of property and equipment are described below:

Property and Equipment	Useful Life
Network equipment	Three to four years
Buildings	15 to 20 years
Computer software, office equipment and other	Two to five years
Leased equipment and leasehold improvements	Lesser of estimated useful life or remaining lease term

Deferred revenue and deposits

Deferred Revenue and Deposits

Deferred revenue consists of billings in advance of revenue recognition. Deposits relate to unused virtual currency held by our users. Once this virtual currency is utilized by a user, approximately 70% of this amount would then be payable to the Platform developer and the balance would be recognized as revenue.

Deferred revenue and deposits consists of the following (in millions):

	December 31,
	2012		2011
Deferred revenue	$	8	$	75
Deposits	22		15
Total deferred revenue and deposits	$	30	$	90

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Other Income (Expense), Net

12 Months Ended

Dec. 31, 2012

Other Income and Expenses [Abstract]

Other Income (Expense), Net

Other income (expense), net

The following table presents the detail of other income (expense), net, for the periods presented (in millions):

	Year Ended December 31,
	2012			2011			2010
Interest income	$	14		$	4		$	1
Foreign currency exchange losses, net	(9		)	(29		)	(1		)
Other	2			6			(2		)
Other income (expense), net	$	7		$	(19	)	$	(2	)

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Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2012

Accrued Liabilities, Current [Abstract]

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities

The components of accrued expenses and other current liabilities were as follows (in millions):

	December 31,
	2012		2011
Accrued compensation and benefits	$	146	$	57
Other current liabilities	277		239
Total accrued expenses and other current liabilities	$	423	$	296

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Income Taxes - Schedule for Income Before Income Tax (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Domestic	$ 1,062	$ 1,819	$ 1,027
Foreign	(568)	(124)	(19)
Income before provision for income taxes	$ 494	$ 1,695	$ 1,008

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Property and Equipment

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment consists of the following (in millions):

	December 31,
	2012			2011
Network equipment	$	1,912		$	1,016
Land	36			34
Buildings	594			355
Leasehold improvements	194			120
Computer software, office equipment and other	93			73
Construction in progress	444			327
Total	3,273			1,925
Less: accumulated depreciation	(882		)	(450		)
Property and equipment, net	$	2,391		$	1,475

Depreciation expense on property and equipment was $566 million, $303 million and $129 million during 2012, 2011 and 2010, respectively.

Property and equipment at December 31, 2012 and 2011 includes $1.28 billion and $881 million, respectively, acquired under capital lease agreements of which the majority is included in computer software, office equipment, and other. Accumulated depreciation of property and equipment acquired under these capital leases was $437 million and $210 million at December 31, 2012 and 2011, respectively.

Construction in progress includes costs primarily related to the construction of data centers and equipment located in our data centers in Oregon, North Carolina, and Sweden. Interest capitalized during the years presented was not material.

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Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

The changes in carrying amount of goodwill for the years ended December 31, 2012 and 2011 are as follows (in millions):

Balance as of December 31, 2010	$	37
Goodwill acquired	48
Effect of currency translation adjustment	(3		)
Balance as of December 31, 2011	82
Goodwill acquired	505
Balance as of December 31, 2012	$	587

Intangible assets consist of the following (in millions):

		December 31, 2012							December 31, 2011
	Useful lives from date of acquisitions (in years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizable intangible assets:
Acquired patents	3 - 18	$	684	$	(53	)	$	631	$	51	$	(4	)	$	47
Acquired technology	2 - 10	133		(32		)	101		38		(15		)	23
Tradename and other	2 - 7	94		(25		)	69		23		(13		)	10
Total		$	911	$	(110	)	$	801	$	112	$	(32	)	$	80

Amortization expense of intangible assets for the years ended December 31, 2012, 2011, and 2010 was $78 million, $20 million, and $9 million, respectively.

As of December 31, 2012, expected amortization expense for the unamortized acquired intangible assets for the next five years and thereafter is as follows (in millions):

2013	$	126
2014	120
2015	112
2016	102
2017	86
Thereafter	255
Total	$	801

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Long-term Debt

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Long-term Debt

Long-term Debt

In 2011, we entered into an agreement for an unsecured five-year revolving credit facility that allowed us to borrow up to $2.5 billion, with interest payable on borrowed amounts set at LIBOR plus 1.0%. No amounts were drawn down under this agreement as of December 31, 2011. This credit facility was terminated in February 2012.

In February 2012, we entered into a new agreement for an unsecured five-year revolving credit facility that allows us to borrow up to $5 billion for general corporate purposes, with interest payable on the borrowed amounts set at LIBOR plus 1.0%. Origination fees are amortized over the term of the credit facility. Under the terms of the agreement, we are obligated to pay a commitment fee of 0.10% per annum on the daily undrawn balance. As of December 31, 2012, no amounts were drawn down and we were in compliance with the covenants under this credit facility.

Concurrent with our entering into the revolving credit facility in February 2012, we also entered into a bridge credit facility agreement that allows us to borrow up to $3 billion to fund tax withholding and remittance obligations related to the settlement of RSUs in connection with our IPO, with interest payable on the borrowed amounts set at LIBOR plus 1.0% and an additional 0.25% payable on drawn balances outstanding from and after the 180th day of borrowing. Under the terms of the agreement, we are obligated to pay a commitment fee of 0.10% per annum on the daily undrawn balance from and after the 90th day following the date we entered into the bridge facility.

In October 2012, we amended and restated our bridge credit facility, and converted it into a three-year unsecured term loan facility (Amended and Restated Term Loan) that allows us to borrow up to $1.5 billion to fund tax withholding and remittance obligations related to the settlement of RSUs in connection with our IPO with interest payable on the borrowed amounts set at LIBOR plus 1.0%, as well as an annual commitment fee of 0.10% on the daily undrawn balance of the facility. We paid origination fees at closing of the Amended and Restated Term Loan, which fees are being amortized over the term of the facility. On October 25, 2012, we fully drew down the $1.5 billion available on the Amended and Restated Term Loan to fund a portion of the withholding tax liability that arise due to the vesting and settlement of RSUs in October and November 2012. We paid an additional upfront fee of 0.15% of the $1.5 billion drawn down on the funding date, which fee is being amortized over the remaining term of the facility. The amount outstanding under this facility will become due and payable on October 25, 2015. As of December 31, 2012, we were in compliance with the covenants in the Amended and Restated Term Loan.

In connection with the draw down of the Amended and Restated Term Loan, we entered into an interest rate swap agreement with an effective date of October 25, 2012. The notional amount of the interest rate swap agreement is $1.5 billion and the agreement converts the one-month LIBOR rate on the corresponding notional amount of debt to a fixed interest rate of 1.46% to hedge our exposure to interest rate fluctuation. This interest rate swap has a maturity date of October 25, 2015. We have designated the interest rate swap agreement as a qualifying hedging instrument and accounted for it as a cash flow hedge.

As of December 31, 2012 the change in fair value of this interest rate swap agreement, net of tax was $2 million and is recognized in AOCI with the corresponding fair value of $4 million included in other liabilities on our consolidated balance sheet. For the year ended December 31, 2012, the amount of loss in other comprehensive income reclassified to interest expense was not significant. There were no realized gains or losses on derivative other than those related to the periodic settlement of the interest rate swap.

We estimate that $3 million of derivative losses included in AOCI will be reclassified into earnings within the next 12 months. This amount has been calculated based on the variable interest rate assumptions used in the fair value calculation of the interest rate swap agreement as of December 31, 2012.

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Income Taxes - Unrecognized Tax Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation of Unrecognized Tax Benefits
Gross unrecognized tax benefits-beginning of period	$ 63	$ 18	$ 9
Increase related to prior year tax positions	13	5	1
Decreases related to prior year tax positions	(16)	(2)	(2)
Increases related to current year tax positions	104	42	10
Gross unrecognized tax benefits-end of period	$ 164	$ 63	$ 18

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Geographical Information - Revenue (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Revenue by Geographical Area
Revenue	$ 5,089		$ 3,711		$ 1,974
United States
Revenue by Geographical Area
Revenue	2,578		2,067		1,223
Rest of world
Revenue by Geographical Area
Revenue	$ 2,511	[1]	$ 1,644	[1]	$ 751	[1]

[1] (1)No individual country exceeded 10% of our total revenue for any period presented.

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Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
Net operating loss carryforward	$ 10	$ 3
Tax credit carryforward	37	9
Share-based compensation	233	79
Accrued expenses and other liabilities	83	58
Other	16	0
Total deferred tax assets	379	149
Less: valuation allowance	(37)	(9)
Deferred tax assets, net of valuation allowance	342	140
Deferred tax liabilities:
Depreciation and amortization	(97)	(69)
Purchased intangible assets	(92)	(10)
Deferred foreign taxes	(15)	(1)
Total deferred tax liabilities	(204)	(80)
Net deferred tax assets	$ 138	$ 60

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Components of Income Before Provision for Income Taxes

The components of income before provision for income taxes for the years ended December 31, 2012, 2011, and 2010 are as follows (in millions):

	Year Ended December 31,
	2012			2011			2010
Domestic	$	1,062		$	1,819		$	1,027
Foreign	(568		)	(124		)	(19		)
Income before provision for income taxes	$	494		$	1,695		$	1,008

Schedule of Provision for Income Taxes

The provision for income taxes consisted of the following (in millions):

	Year Ended December 31,
	2012			2011			2010
Current:
Federal	$	559		$	664		$	325
State	45			60			57
Foreign	22			8			1
Total current tax expense	626			732			383
Deferred:
Federal	(172		)	(34		)	13
State	(6		)	(3		)	6
Foreign	(7		)	—			—
Total deferred tax expense (benefit)	(185		)	(37		)	19
Provision for income taxes	$	441		$	695		$	402

Reconciliation of U.S. Federal Statutory Income Tax Rate to Effective Tax Rate

A reconciliation of the U.S. federal statutory income tax rate of 35% to our effective tax rate is as follows (in percentages):

	Year Ended December 31,
	2012		2011		2010
U.S. federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal benefit	6.2		2.2		4.0
Research tax credits	—		(1.0	)	(0.8	)
Share-based compensation	19.2		1.5		0.3
Foreign losses not benefited	26.9		3.3		0.8
Other	2.0		—		0.6
Effective tax rate	89.3	%	41.0	%	39.9	%

Schedule of Deferred Tax Assets and Liabilities

Our deferred tax assets (liabilities) are as follows (in millions):

	December 31,
	2012			2011
Deferred tax assets:
Net operating loss carryforward	$	10		$	3
Tax credit carryforward	37			9
Share-based compensation	233			79
Accrued expenses and other liabilities	83			58
Other	16			—
Total deferred tax assets	379			149
Less: valuation allowance	(37		)	(9		)
Deferred tax assets, net of valuation allowance	342			140
Deferred tax liabilities:
Depreciation and amortization	(97		)	(69		)
Purchased intangible assets	(92		)	(10		)
Deferred foreign taxes	(15		)	(1		)
Total deferred tax liabilities	(204		)	(80		)
Net deferred tax assets	$	138		$	60

Schedule of Gross Unrecognized Tax Benefits Roll Forward

The following table reflects changes in the gross unrecognized tax benefits (in millions):

	Year Ended December 31,
	2012			2011			2010
Gross unrecognized tax benefits-beginning of period	$	63		$	18		$	9
Increase related to prior year tax positions	13			5			1
Decreases related to prior year tax positions	(16		)	(2		)	(2		)
Increases related to current year tax positions	104			42			10
Gross unrecognized tax benefits-end of period	$	164		$	63		$	18

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Long-term Debt - Derivative (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 25, 2012 Interest Rate Swap	Oct. 25, 2012 Amended and Restated Term Loan Interest Rate Swap Cash Flow Hedging	Dec. 31, 2012 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring
Derivative
Notional amount of interest rate derivatives					$ 1,500,000,000
Derivative, Description of Variable Rate Basis				one-month LIBOR
Derivative, fixed interest rate					1.46%
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	3,000,000
Unrealized loss on derivatives arising during period, net of tax	2,000,000	0	0
Derivative financial instruments						$ 4,000,000

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Geographical Information

12 Months Ended

Dec. 31, 2012

Segments, Geographical Areas [Abstract]

Geographical Information

Geographical Information

Revenue by geography is based on the billing address of the advertiser or Platform developer. The following table sets forth revenue and property and equipment, net by geographic area (in millions):  

	Year Ended December 31,
	2012		2011		2010
Revenue:
United States	$	2,578	$	2,067	$	1,223
Rest of the world(1)	2,511		1,644		751
Total revenue	$	5,089	$	3,711	$	1,974

(1) No individual country exceeded 10% of our total revenue for any period presented.

	December 31,
	2012		2011
Property and equipment, net:
United States	$	2,110	$	1,444
Rest of the world(1)	281		31
Total property and equipment, net	$	2,391	$	1,475

(1) No individual country exceeded 10% of our total property and equipment, net for any period presented.

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Cash and Cash Equivalents, and Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2012

Cash and Cash Equivalents, and Marketable Securities [Abstract]

Cash, Cash Equivalents and Marketable Securities

The following table sets forth the cash, cash equivalents and marketable securities for the periods presented (in millions):

	December 31,
	2012		2011
Cash and cash equivalents:
Cash	$	1,513	$	510
Cash equivalents:
Money market funds	871		892
U.S. government securities	—		60
U.S. government agency securities	—		50
Total cash and cash equivalents	2,384		1,512
Marketable securities:
U.S. government securities	5,165		1,415
U.S. government agency securities	2,077		981
Total marketable securities	7,242		2,396
Total cash, cash equivalents and marketable securities	$	9,626	$	3,908

Marketable Securities by Contractual Maturities

The following table classifies our marketable securities by contractual maturities: (in millions):

	December 31,
	2012		2011
Due in one year	$	4,815	$	1,964
Due in one to two years	2,427		432
Total	$	7,242	$	2,396

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Accrued Expenses and Other Current Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accrued Liabilities, Current [Abstract]
Accrued compensation and benefits	$ 146	$ 57
Other current liabilities	277	239
Accrued expenses and other current liabilities	$ 423	$ 296

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Summary of Significant Accounting Policies - Other Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 25, 2012 Amended and Restated Term Loan Unsecured debt
Accounting Policies [Abstract]
Long-term debt	$ 1,500	$ 0		$ 1,500
Advertising expense	67	28	8
Foreign currency exchange losses, net	9	29	1
Debt Instrument
Term loan facility, term period				3 years
Deferred Revenue & Deposits [Abstract]
Deferred Revenue, rate payable to platform developer upon utilization of virtual currency	70.00%
Deferred Revenue	8	75
Deposits	22	15
Deferred Revenue and Deposits	$ 30	$ 90

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Other Comprehensive Income [Abstract]
Net income	$ 53	$ 1,000	$ 606
Other comprehensive income (loss):
Foreign currency translation adjustment	9	0	(6)
Unrealized gain on available-for-sale investments, net of tax	1	0	0
Unrealized loss on derivatives arising during period, net of tax	(2)	0	0
Comprehensive income	$ 61	$ 1,000	$ 600

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Earnings per Share

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

We compute earnings per share (EPS) of Class A and Class B common stock using the two-class method required for participating securities. Prior to the date of the IPO, we considered all series of our convertible preferred stock to be participating securities due to their non-cumulative dividend rights. Immediately after the completion of our IPO in May 2012, all outstanding shares of convertible preferred stock converted to Class B common stock. Additionally, we consider restricted stock awards to be participating securities, because holders of such shares have non-forfeitable dividend rights in the event of our declaration of a dividend for common shares.

Undistributed earnings allocated to these participating securities are subtracted from net income in determining net income attributable to common stockholders. Net losses, if any are not allocated to these participating securities. Basic EPS is computed by dividing net income attributable to common stockholders by the weighted-average number of shares of our Class A and Class B common stock outstanding, adjusted for outstanding shares that are subject to repurchase.

For the calculation of diluted EPS, net income attributable to common stockholders for basic EPS is adjusted by the effect of dilutive securities, including awards under our equity compensation plans. In addition, the computation of the diluted EPS of Class A common stock assumes the conversion from Class B common stock, while the diluted EPS of Class B common stock does not assume the conversion of those shares. Diluted EPS attributable to common stockholders is computed by dividing the resulting net income attributable to common stockholders by the weighted-average number of fully diluted common shares outstanding.

Dilutive securities in our diluted EPS calculation for the years ended December 31, 2011 and 2010 do not include Pre-2011 RSUs. Vesting of these RSUs is dependent upon the satisfaction of both a service condition and a liquidity condition. The liquidity condition is satisfied upon the occurrence of a qualifying event, defined as a change of control transaction or six months following the completion of our IPO. Our IPO did not occur until May 2012. Therefore, prior to this date the holders of these RSUs had no rights in our undistributed earnings and accordingly, they are excluded from the effect of basic and dilutive securities. However, subsequent to the completion of our IPO in May 2012, these RSUs are included in our basic and diluted EPS calculation. Post-2011 RSUs are not subject to a liquidity condition in order to vest, and are thus included in the calculation of diluted EPS. We also excluded 15 million and three million Post-2011 RSUs for the years ended December 31, 2012 and December 31, 2011, respectively, and two million shares issuable upon exercise of employee stock options for the year ended December 31, 2010 because the impact would be anti-dilutive.

Basic and diluted EPS are the same for each class of common stock because they are entitled to the same liquidation and dividend rights.

The numerators and denominators of the basic and diluted EPS computations for our common stock are calculated as follows (in millions, except per share amounts):

	Year Ended December 31,
	2012				2011				2010
	Class A		Class B		Class A		Class B		Class A		Class B
Basic EPS:
Numerator
Net income	$	18	$	35	$	85	$	915	$	18	$	588
Less: Net income attributable to participating securities	7		14		28		304		7		227
Net income attributable to common stockholders	$	11	$	21	$	57	$	611	$	11	$	361
Denominator
Weighted average shares outstanding	668		1,344		110		1,189		32		1,081
Less: Shares subject to repurchase	1		5		—		5		—		6
Number of shares used for basic EPS computation	667		1,339		110		1,184		32		1,075
Basic EPS	$	0.02	$	0.02	$	0.52	$	0.52	$	0.34	$	0.34
Diluted EPS:
Numerator
Net income attributable to common stockholders	$	11	$	21	$	57	$	611	$	11	$	361
Reallocation of net income attributable to participating securities	—		—		31		—		30		—
Reallocation of net income as a result of conversion of Class B to Class A common stock	21		—		611		—		361		—
Reallocation of net income to Class B common stock	—		1		—		37		—		32
Net income attributable to common stockholders for diluted EPS	$	32	$	22	$	699	$	648	$	402	$	393
Denominator
Number of shares used for basic EPS computation	667		1,339		110		1,184		32		1,075
Conversion of Class B to Class A common stock	1,339		—		1,184		—		1,075		—
Weighted average effect of dilutive securities:
Employee stock options	134		134		204		204		295		295
RSUs	23		23		5		5		—		—
Shares subject to repurchase	3		3		3		3		4		4
Warrants	—		—		2		2		8		8
Number of shares used for diluted EPS computation	2,166		1,499		1,508		1,398		1,414		1,382
Diluted EPS	$	0.01	$	0.01	$	0.46	$	0.46	$	0.28	$	0.28

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Stockholders' Equity - Additional Award Disclosures (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award
Future period share-based compensation expense	$ 2,210
Future period share-based compensation expense period of recognition	3 years
Restricted shares and stock options
Share-based Compensation Arrangement by Share-based Payment Award
Future period share-based compensation expense	244
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Future period share-based compensation expense	$ 1,960

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

The following table summarizes, for assets or liabilities measured at fair value, the respective fair value and the classification by level of input within the fair value hierarchy (in millions):  

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents:
Money market funds	$	871	$	871	$	—	$	—
Marketable securities:
U.S. government securities	5,165		5,165		—		—
U.S. government agency securities	2,077		2,077		—		—
Total cash equivalents and marketable securities	$	8,113	$	8,113	$	—	$	—
Other current liabilities:
Contingent consideration liability	$	4	$	—	$	—	$	4
Other liabilities:
Derivative financial instrument	$	4	$	—	$	4	$	—

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3
Cash equivalents:
Money market funds	$	892	$	892	—		—
U.S. government securities	60		60		—		—
U.S. government agency securities	50		50		—		—
Total cash equivalents	1,002		1,002		—		—
Marketable securities:
U.S. government securities	1,415		1,415		—		—
U.S. government agency securities	981		981		—		—
Total cash equivalents and marketable securities	$	3,398	$	3,398	$	—	$	—

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Summary of Significant Accounting Policies - Property & Equipment (Details)	12 Months Ended
	Dec. 31, 2012
Network equipment | Min
Property, Plant and Equipment
Useful life of property and equipment	3 years
Network equipment | Max
Property, Plant and Equipment
Useful life of property and equipment	4 years
Buildings | Min
Property, Plant and Equipment
Useful life of property and equipment	15 years
Buildings | Max
Property, Plant and Equipment
Useful life of property and equipment	20 years
Computer software, office equipment and other | Min
Property, Plant and Equipment
Useful life of property and equipment	2 years
Computer software, office equipment and other | Max
Property, Plant and Equipment
Useful life of property and equipment	5 years

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Income Taxes

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The components of income before provision for income taxes for the years ended December 31, 2012, 2011, and 2010 are as follows (in millions):

	Year Ended December 31,
	2012			2011			2010
Domestic	$	1,062		$	1,819		$	1,027
Foreign	(568		)	(124		)	(19		)
Income before provision for income taxes	$	494		$	1,695		$	1,008

The provision for income taxes consisted of the following (in millions):

	Year Ended December 31,
	2012			2011			2010
Current:
Federal	$	559		$	664		$	325
State	45			60			57
Foreign	22			8			1
Total current tax expense	626			732			383
Deferred:
Federal	(172		)	(34		)	13
State	(6		)	(3		)	6
Foreign	(7		)	—			—
Total deferred tax expense (benefit)	(185		)	(37		)	19
Provision for income taxes	$	441		$	695		$	402

A reconciliation of the U.S. federal statutory income tax rate of 35% to our effective tax rate is as follows (in percentages):

	Year Ended December 31,
	2012		2011		2010
U.S. federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal benefit	6.2		2.2		4.0
Research tax credits	—		(1.0	)	(0.8	)
Share-based compensation	19.2		1.5		0.3
Foreign losses not benefited	26.9		3.3		0.8
Other	2.0		—		0.6
Effective tax rate	89.3	%	41.0	%	39.9	%

Excess tax benefits associated with stock option exercises and other equity awards are credited to stockholders' equity. The income tax benefits resulting from stock awards that were credited to stockholders' equity were $1.03 billion, $433 million and $107 million for the years ended December 31, 2012, 2011, and 2010.

Our deferred tax assets (liabilities) are as follows (in millions):

	December 31,
	2012			2011
Deferred tax assets:
Net operating loss carryforward	$	10		$	3
Tax credit carryforward	37			9
Share-based compensation	233			79
Accrued expenses and other liabilities	83			58
Other	16			—
Total deferred tax assets	379			149
Less: valuation allowance	(37		)	(9		)
Deferred tax assets, net of valuation allowance	342			140
Deferred tax liabilities:
Depreciation and amortization	(97		)	(69		)
Purchased intangible assets	(92		)	(10		)
Deferred foreign taxes	(15		)	(1		)
Total deferred tax liabilities	(204		)	(80		)
Net deferred tax assets	$	138		$	60

The valuation allowance was approximately $37 million and $9 million as of December 31, 2012 and 2011, respectively, related to state tax credits that we do not believe will ultimately be realized.

As of December 31, 2012, the U.S. federal and state net operating loss carryforwards were approximately $5.83 billion and $7.62 billion, which will expire in 2027 and 2021, respectively, if not utilized. If realized, $2.17 billion of net operating loss carryforwards will be recognized as a benefit through additional paid in capital. We also have state tax credit carryforwards of $181 million, which carry forward indefinitely.

Utilization of our net operating loss and tax credit carryforwards may be subject to substantial annual limitations due to the ownership change limitations provided by the Internal Revenue Code and similar state provisions. Such annual limitations could result in the expiration of the net operating loss and tax credit carryforwards before their utilization. The events that may cause ownership changes include, but are not limited to, a cumulative stock ownership change of greater than 50% over a three-year period.

Our net foreign pretax losses include jurisdictions with both pretax earnings and pretax losses. Our consolidated financial statements provide taxes for all related tax liabilities that would arise upon repatriation of earnings in the foreign jurisdictions where we do not intend to indefinitely reinvest those earnings outside the United States, and the amount of taxes provided for has been insignificant.

The following table reflects changes in the gross unrecognized tax benefits (in millions):

	Year Ended December 31,
	2012			2011			2010
Gross unrecognized tax benefits-beginning of period	$	63		$	18		$	9
Increase related to prior year tax positions	13			5			1
Decreases related to prior year tax positions	(16		)	(2		)	(2		)
Increases related to current year tax positions	104			42			10
Gross unrecognized tax benefits-end of period	$	164		$	63		$	18

During all years presented, we recognized interest and penalties related to unrecognized tax benefits within the provision for income taxes on the consolidated statements of income. For the year ended December 31, 2012, we recognized interest of $3 million and penalties of $1 million. The amount of interest and penalties accrued as of December 31, 2012 and 2011 was $10 million and $6 million, respectively.

If the remaining balance of gross unrecognized tax benefits of $164 million as of December 31, 2012 was realized in a future period, this would result in a tax benefit of $70 million within our provision of income taxes at such time.

We are subject to taxation in the United States and various other state and foreign jurisdictions. The material jurisdictions in which we are subject to potential examination include the United States and Ireland. We are under examination by the Internal Revenue Service (IRS) for our 2008 through 2010 tax years. We believe that adequate amounts have been reserved for any adjustments that may ultimately result from these examinations and we do not anticipate a significant impact to our gross unrecognized tax benefits within the next 12 months related to these years. Our 2011 and 2012 tax years remain subject to examination by the IRS and all tax years starting in 2008 remain subject to examination in Ireland. We remain subject to possible examinations or are undergoing audits in various other jurisdictions that are not material to our financial statements.

Although the timing of the resolution, settlement, and closure of any audits is highly uncertain, it is reasonably possible that the balance of gross unrecognized tax benefits could significantly change in the next 12 months. However, given the number of years remaining that are subject to examination, we are unable to estimate the full range of possible adjustments to the balance of gross unrecognized tax benefits.