comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly comScore qSearch analysis of the U.S. search marketplace. In September 2009, Americans conducted 13.8 billion core searches, with Google Sites accounting for 64.9 percent search market share. Microsoft Sites grabbed 9.4 percent market share, representing a slight gain versus August.
September 2009 U.S. Core Search Rankings
Google Sites led the U.S. core search market in September with 64.9 percent of the searches conducted, followed by Yahoo! Sites (18.8 percent), and Microsoft Sites (9.4 percent). Ask Network captured 3.9 percent of the search market, followed by AOL LLC with 3.0 percent.