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Goodwill (Tables) | 9 Months Ended
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Sep. 30, 2013
Goodwill | Changes in the carrying amount of goodwill during the nine months ended September 30, 2013 are as follows (in thousands):
|  | Call Driven |  |  | Archeo |  |  | Total |
Balance as of December 31, 2012 |  | $ | 63,305 |  |  | $ | 2,510 |  |  | $ | 65,815 |
Sale of certain pay-per-click advertising assets |  |  | — |  |  |  | (136 | ) |  |  | (136 | )
Balance as of September 30, 2013 |  | $ | 63,305 |  |  | $ | 2,374 |  |  | $ | 65,679 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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