Enterprise-Wide Information (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Revenues for Group of Services Provided to External Customers

The following table sets forth the revenue for each group of services provided to our external customers for the years ended December 31, 2012, 2011, and 2010 (in thousands):

	2012		2011		2010
Radio audience ratings services	$	364,690	$	341,824	$	318,618
Local market consumer information services		38,816		35,173		35,187
Software applications		34,965		34,306		33,126
All other services		11,387		11,007		8,448
Total revenue	$	449,858	$	422,310	$	395,379

Schedule of Revenue Attributed to Geographic Areas

following table sets forth geographic information for the revenue earned during the years ended December 31, 2012, 2011, and 2010 (in thousands):

	2012		2011		2010
U.S.	$	444,074	$	416,154	$	390,424
International (1)		5,784		6,156		4,955
Total revenues	$	449,858	$	422,310	$	395,379

(1) The revenues of the individual countries comprising these amounts are not significant.

Geographic Information for Property and Equipment

The following table sets forth geographic information for property and equipment, net as of December 31, 2012, and 2011 (in thousands):

	2012		2011
U.S.	$	59,716	$	69,010
International (2)		1,953		1,641
Total property and equipment, net	$	61,669	$	70,651

(2) The net property and equipment of the individual countries comprising these amounts are not significant.