8. Goodwill and Intangible Assets

As of December 31, the gross and net amounts of acquired intangible assets were as follows:


Goodwill	Strategic Marketing Services			Performance Marketing Services			Total
Balance of December 31, 2009	$	248,114		$	53,518		$	301,632
Acquired goodwill		78,147			132,497			210,644
Goodwill impairment		(942	)		—			(942	)
Foreign currency translation		1,658			1,496			3,154
Balance as of December 31, 2010	$	326,977		$	187,511		$	514,488
Acquired goodwill		61,944			23,763			85,707
Acquisition purchase price adjustments		1,458			5,549			7,007
Foreign currency translation		(854	)		(1,104	)		(1,958	)
Balance as of December 31, 2011	$	389,525		$	215,719		$	605,244


	For the Year Ended December 31,
	2011			2010
Intangibles:
Trademarks (indefinite life)	$	17,780		$	17,780
Customer relationships – gross	$	79,154		$	68,603
Less accumulated amortization		(44,803	)		(26,517	)
Customer relationships – net	$	34,351		$	42,086
Other intangibles – gross	$	16,202		$	16,926
Less accumulated amortization		(10,353	)		(9,659	)
Other intangibles – net	$	5,849		$	7,267
Total intangible assets	$	113,136		$	103,309
Less accumulated amortization		(55,156	)		(36,176	)
Total intangible assets – net	$	57,980		$	67,133

See Note 4 for Accounting for Business Combinations.

During 2010, the Company recorded a goodwill impairment charge of $942, which consists of $710 relating to Fearless and $232 relating to Zig US. Fearless was a start up company that the Company discontinued in June 2010. Zig US’s business operations have been treated as discontinued as of September 30, 2010.

The total accumulated impairment charges totaled $24,845 through December 31, 2011.

The weighted average amortization periods for customer relationships are 5 years and other intangible assets are 6 years. In total, the weighted average amortization period is 5 years. The amortization expense of amortizable intangible assets for the year ended December 31, 2011, was $22,510 (2010 — $17,631; 2009 — $17,968) the estimated amortization expense for the five succeeding years is:


Year	Amortization
2012	$	18,694
2013	$	10,217
2014	$	6,888
2015	$	3,835
2016	$	566

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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