Microsoft and Yahoo, after a long courtship, finally got hitched and announced a 10-year deal in which Microsoft’s Bing search technology will power Yahoo’s sites. A quick summary of the deal from the perspective of an advertiser:

  • The deal combines Yahoo’s 19.6% of U.S. search traffic with Microsoft’s 8.4% to give the new partnership a 28% market share. This compares to Google’s share of 65%.
  • All self-serve advertising will be integrated into Microsoft’s AdCenter.
  • Display advertising will remain separate and will be sold by Yahoo’s worldwide sales team.
  • Microsoft gains access to Yahoo’s search indexes and technologies.