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Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Revenues by revenue sources |  |  |  |
Total revenue | $ 34,822 | $ 39,862 | $ 104,316 | $ 107,703
Partner and Other Revenue Sources [Member] |  |  |  |
Revenues by revenue sources |  |  |  |
Total revenue | 32,795 | 34,820 | 95,330 | 91,881
Proprietary Web site Traffic Sources [Member] |  |  |  |
Revenues by revenue sources |  |  |  |
Total revenue | $ 2,027 | $ 5,042 | $ 8,986 | $ 15,822

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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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