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 July 2009, Americans conducted nearly 13.6 billion core searches, with Google Sites accounting for 64.7 percent search market share. Microsoft Sites grabbed 8.9 percent market share, a 0.5 percentage point gain versus June. July 2009 U.S. Core Search Rankings Google Sites led the U.S. core search market in June with 64.7 percent of the searches conducted, followed by Yahoo! Sites (19.3 percent), and Microsoft Sites (8.9 percent). Ask Network captured 3.9 percent of the search market, followed by AOL LLC with 3.1 percent. comScore Core Search Report* July 2009 vs. June 2009 Total U.S. – Home/Work/University Locations Source: comScore qSearch Core Search Entity Search Queries (MM) Jun-09 Jul-09 Point Change Jul-09 vs. Jun-09 Total Core Search 100.0% 100.0% N/A Google Sites 65.0% 64.7% -0.3 Yahoo! Sites 19.6% 19.3% -0.3 Microsoft Sites 8.4% 8.9% 0.5 Ask Network 3.9% 3.9% 0.0 AOL LLC Network 3.1% 3.1% 0.0 * Based on the five major search [+]