RESTON, Va., July 16, 2007 /PRNewswire-FirstCall via COMTEX News Network/ -- comScore (Nasdaq: SCOR), a leader in measuring the digital world, today 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).

    Share of Online Searches by Engine
    May 2007 - June 2007
    Total U.S. Home, Work and University Internet Users
    Source: comScore qSearch

                                                           Pt Chg vs.
                                                           Previous
                                May-07        Jun-07       Month

    Total Internet Population    100.0%        100.0%          N/A
    Google Sites                  50.7%         49.5%         -1.2
    Yahoo! Sites                  26.4%         25.1%         -1.3
    Microsoft Sites               10.3%         13.2%          2.9
    Ask Network                    5.0%          5.0%          0.0
    Time Warner Network            4.6%          4.2%         -0.4



    --  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.

For more information on comScore qSearch, please email searchsolutions@comscore.com or call (650) 244-5412.

About comScore

comScore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world. This capability is based on a massive, global cross-section of more than 2 million consumers who have given comScore permission to confidentially capture their browsing and transaction behavior, including online and offline purchasing. comScore panelists also participate in survey research that captures and integrates their attitudes and intentions. Through its proprietary technology, comScore measures what matters across a broad spectrum of behavior and attitudes. comScore analysts apply this deep knowledge of customers and competitors to help clients design powerful marketing strategies and tactics that deliver superior ROI. comScore services are used by more than 700 clients, including global leaders such as AOL, Microsoft, Yahoo!, Verizon, Best Buy, The Newspaper Association of America, Tribune Interactive, ESPN, Fox Sports, Nestle, MBNA, Starcom USA, Universal McCann, the United States Postal Service, Merck and Expedia. For more information, please visit http://www.comscore.com.

SOURCE comScore, Inc.

Andrew Lipsman of comScore, Inc., +1-312-775-6510, press@comscore.com

http://www.comscore.com

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