August 2008
Yahoo! Search Marketing - Wikipedia, the free encyclopedia
"In February 1998, GoTo offered advertisers the option of bidding on how much they would be willing to pay to appear at the top of results in response to specific searches. The bid amount was paid by the advertiser to Goto every time a searcher clicked on a link to the advertiser's website. "
October 2006
GoTo to Overture to YSM - Timeline » eWhisper.net
History of Yahoo! Search Marketing, formerly Overture Services and GoTo.com
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