Intangible Assets

12 Months Ended

Dec. 31, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

7. Intangible Assets

The following table summarizes the Company’s intangible assets, net:

			As of December 31, 2013
	Estimated Useful  Lives (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer, affiliate and advertiser relationships		5-9	$	7,146	$	(4,563	)	$	2,583
Developed websites, technology and patents		6-10		6,942		(5,721	)		1,221
Trademark, trade name and domain name		5-8		2,044		(1,482	)		562
Proprietary user information database and internet traffic		3-5		1,318		(789	)		529
Non-compete agreements		2-3		450		(387	)		63
Total intangible assets			$	17,900	$	(12,942	)	$	4,958

	Estimated Useful  Lives (Years)		As of December 31, 2012
			Gross Carrying Amount		Accumulated Amortization			Net
Customer, affiliate and advertiser relationships		4-9	$	7,067	$	(3,586	)	$	3,481
Developed websites, technology and patents		3-10		6,874		(5,100	)		1,774
Trademark, trade name and domain name		1-8		2,026		(1,152	)		874
Proprietary user information database and internet traffic		5		1,295		(519	)		776
Non-compete agreements		2-3		439		(301	)		138
Total intangible assets			$	17,701	$	(10,658	)	$	7,043

Intangible assets are amortized over their estimated useful lives, which range from two to ten years, using methods of amortization that are expected to reflect the estimated pattern of economic use. The remaining amortization expense will be recognized over a weighted-average period of approximately 2.7 years. Amortization expense was $2.2 million, $3.4 million and $4.0 million for the years ended December 31, 2013, 2012 and 2011, respectively. Amortization expense is recorded within operating expenses as the intangible assets consist of customer-related assets and website traffic that the Company considers to be in support of selling and marketing activities. The Company wrote off $6.2 million and $7.6 million of fully amortized intangible assets in 2012 and 2011, respectively. The Company did not write off any amortized intangible assets in 2013.

The Company expects amortization expense of intangible assets to be as follows:

Years Ending December 31:	Amortization Expense
2014	$	1,777
2015		1,478
2016		916
2017		206
2018		128
Thereafter		453
	$	4,958