Google Loses Search Share, Microsoft Gains

The overall volume of U.S. search queries reached 8 billion in June, up 6% from May and 26% from June 2006, according to comScore.
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comScore Releases June U.S. Search Engine Rankings (news release)
comScore released its monthly comScore qSearch analysis of activity across competitive search engines. In June 2007, Google Sites maintained its spot atop the rankings with 49.5 percent of the U.S. search market. Yahoo! Sites captured second place with 25.1 percent of U.S. searches, followed by Microsoft Sites (13.2 percent), Ask Network (5.0 percent) and Time Warner Network (4.2 percent).

• Americans conducted 8.0 billion searches online in June, up 6 percent versus May and up 26 percent versus June 2006.
• Google Sites led the pack with 4.0 billion search queries performed, followed by Yahoo Sites (2.0 billion), Microsoft Sites (1.1 billion), Ask Network (403 million), and Time Warner Network (341 million). Despite declining in search market share in June, both Google Sites and Yahoo! Sites enjoyed increases in search query volume.
• Microsoft Sites experienced a significant increase in search query volume (up 36 percent) and search market share (up 2.9 share points) in June, due in large part to Live Search Club, a program launched by Microsoft in late May to engage and reward users of Live Search.

http://www.comscore.com/press/release.asp?press=1525