Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Advertising Costs

Advertising costs for the years ended December 31, 2012, 2011 and 2010, are reflected in the following table (in thousands):

	Years Ended December 31,
	2012		2011		2010
Advertising Costs	$	42,256	$	42,728	$	37,941

Depreciation Expense Computed Using Straight-Line Method over Useful Lives

Depreciation expense is computed using the straight-line method over the following useful lives:

Computer hardware	2 to 3 years
Computer software	2 to 5 years
Furniture and equipment	5 years
Leasehold improvements	Term of lease, 5 years maximum

Internal-Use Software Development Costs Capitalized

Internal-use software development costs capitalized for the years ended December 31, 2012, 2011 and 2010, are reflected in the following table (in thousands):

	Years Ended December 31,
	2012		2011		2010
Internal-use software development costs	$	19,083	$	18,133	$	10,512