The Ten Biggest Advertising Publishers On The Web

Last year, Yahoo still dominated display advertising on the Web in terms of sheer number of ad impressions on its properties, but social networking sites MySpace and Facebook came on strong. Some new data from comScore in its just-released 2009 U.S. Digital Year in Review ranks the top Web properties by the number of display ad impressions. Yahoo served up an estimated 521 billion impressions last year, according to the report, followed by Fox Interactive Media (i.e. MySpace) with 368 billion, and Facebook with 330 billion. Microsoft sites (No.4) only served up 218 billion display ads, whereas Google (No. 6) served up only 70 billion. (These numbers do not include paid search text ads) Here's the full ranking: