Stock-Based Compensation and Charges (Tables)

9 Months Ended

Sep. 30, 2013

Stock-Based Compensation and Charges

Summary of stock-based compensation and charges, associated with stock option, restricted stock and restricted stock unit grants to employees and nonemployees

The following chart summarizes the stock-based compensation and charges associated with stock option, restricted stock and restricted stock unit grants to employees and nonemployees, that have been included in the following financial statement captions for each of the periods presented (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Cost of revenue	$	74	$	71	$	261	$	193
Sales and marketing	648		361		1,746		1,554
Product and web site development	723		527		2,050		1,412
General and administrative	1,297		1,037		4,184		2,697
Total stock-based compensation and charges	$	2,742	$	1,996	$	8,241	$	5,856

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

	Three Months Ended			Nine Months Ended
	September 30,			September 30,
	2013		2012	2013	2012
Risk-free interest rates	1.38	%	0.59%-0.67%	0.69%-1.41%	0.59%-1.04%
Expected term (in years)	5.85		5.85	5.85	5.85
Dividend yield	0	%	0%	0%	0%
Expected volatility	70	%	75%	70%-75%	75%