Depreciation and Amortization (Tables)

6 Months Ended

Jun. 30, 2011

Depreciation and Amortization (Tables) [Abstract]

Depreciation and amortization expenses excluded from operating expenses

	Three months ended				Six months ended
	June 30,				June 30,
	2011		2010		2011		2010
Direct advertising expenses	$	68,675	$	74,476	$	138,246	$	149,116
General and administrative expenses		1,059		1,250		2,070		2,516
Corporate expenses		2,676		2,439		5,967		4,875
	$	72,410	$	78,165	$	146,283	$	156,507