Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements of Operations
Revenue	$ 35,267	$ 30,174	$ 95,497	$ 72,652
Cost of revenue	21,057	16,704	53,869	43,453
Gross profit	14,210	13,470	41,628	29,199
Operating expenses:
Technology and development	2,833	2,215	8,348	5,862
Sales and marketing	9,477	8,869	28,263	26,079
General and administrative	2,681	2,461	8,069	7,991
Depreciation and amortization	1,581	1,510	4,576	4,468
Total operating expenses	16,572	15,055	49,256	44,400
Loss from operations	(2,362)	(1,585)	(7,628)	(15,201)
Interest and other income (expense):
Interest expense	(14)	(57)	(127)	(169)
Other income (expense)	153	37	323	(2)
Total interest and other income (expense), net	139	(20)	196	(171)
Loss before income taxes	(2,223)	(1,605)	(7,432)	(15,372)
Income tax expense	(20)	(70)	(243)	(210)
Net loss	(2,243)	(1,675)	(7,675)	(15,582)
Series F preferred stock deemed dividend	(15,849)		(15,849)
Net loss attributable to common stockholders	$ (18,092)	$ (1,675)	$ (23,524)	$ (15,582)
Net loss attributable to common stockholders per share:
Basic and diluted (in dollars per share)	$ (0.37)	$ (0.22)	$ (1.08)	$ (2.09)
Weighted average number of shares of common stock outstanding:
Basic and diluted (in shares)	49,115,766	7,541,832	21,686,759	7,440,430