Subsequent Events	12 Months Ended
Dec. 31, 2011
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS Acquisitions In the first two months of 2012, the Company acquired six companies for an aggregate purchase price of $28.4 million, of which $27.1 million was cash. The companies acquired represent technology start-up companies, each specializing in unique aspects of technology development. The primary reasons for these acquisitions were to acquire talent related to technology development, including information database development and maintenance, search engine development, location-based technologies, merchant products and support and transactional marketing. The acquisitions will be accounted for using the purchase method of accounting and the operations of these acquired companies will be included in the consolidated financial statements from their respective dates of the acquisition. The financial effect of these acquisitions, individually and in the aggregate, was not material to the Company’s consolidated financial statements. Pro-forma results of operations have not been presented because the effects of these business combinations, individually and in the aggregate, were not material to the Company’s consolidated results of operations as they were start-up businesses. Additional Purchase of Majority-Owned Subsidiary In February 2012, the Company acquired additional interests of two majority-owned subsidiary for an aggregate purchase price of $9.5 million, including $8.7 million in cash and $0.8 million of Class A common stock. Of these amounts, $1.3 million of cash and $0.3 million of Class A common stock will be paid over a two year period.

SUBSEQUENT EVENTS

Acquisitions

In the first two months of 2012, the Company acquired six companies for an aggregate purchase price of $28.4 million, of which $27.1 million was cash. The companies acquired represent technology start-up companies, each specializing in unique aspects of technology development. The primary reasons for these acquisitions were to acquire talent related to technology development, including information database development and maintenance, search engine development, location-based technologies, merchant products and support and transactional marketing.

The acquisitions will be accounted for using the purchase method of accounting and the operations of these acquired companies will be included in the consolidated financial statements from their respective dates of the acquisition. The financial effect of these acquisitions, individually and in the aggregate, was not material to the Company’s consolidated financial statements. Pro-forma results of operations have not been presented because the effects of these business combinations, individually and in the aggregate, were not material to the Company’s consolidated results of operations as they were start-up businesses.

Additional Purchase of Majority-Owned Subsidiary

In February 2012, the Company acquired additional interests of two majority-owned subsidiary for an aggregate purchase price of $9.5 million, including $8.7 million in cash and $0.8 million of Class A common stock. Of these amounts, $1.3 million of cash and $0.3 million of Class A common stock will be paid over a two year period.