Condensed Consolidated Balance Sheet (Unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 16,535	$ 18,561	[1]
Short-term investments	40,147	53,007	[1]
Accounts receivable, net	6,119	5,133	[1]
Prepaid expenses and other current assets	1,174	1,617	[1]
Total current assets	63,975	78,318	[1]
Long-term investments	2,625	2,667	[1]
Property and equipment, net	528	623	[1]
Goodwill	13,621	10,181	[1]
Purchased technology, net	164	226	[1]
Intangible assets, net	6,000	1,076	[1]
Other assets	723	648	[1]
Total assets	87,636	93,739	[1]
Current liabilities:
Accounts payable	609	536	[1]
Accrued compensation	2,352	1,248	[1]
Other accrued liabilities	4,495	3,575	[1]
Short-term deferred revenue	3,897	1,574	[1]
Total current liabilities	11,353	6,933	[1]
Long-term deferred revenue	514
Other long-term liabilities	1,119	749	[1]
Total Liabilities	12,986	7,682	[1]
Commitments and contingencies (Note 4)			[1]
Stockholders' equity:
Common stock	5	5	[1]
Additional paid-in capital	232,953	229,692	[1]
Accumulated other comprehensive loss	(1,708)	(1,331)	[1]
Accumulated deficit	(156,600)	(142,309)	[1]
Total stockholders' equity	74,650	86,057	[1]
Total liabilities and stockholders' equity	$ 87,636	$ 93,739	[1]

[1] Derived from the December 31, 2010 audited Consolidated Financial Statements included in the Annual Report on Form 10-K, as filed with the Securities and Exchange Commission ("SEC") on March 11, 2011.