comScore Releases August 2009 U.S. Search Engine Rankings

Ad Operations OnlineRESTON, VA – comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, released its monthly comScore qSearch analysis of the U.S. search marketplace. In August 2009, Americans conducted more than 13.9 billion core searches, with Google Sites accounting for 64.6 percent search market share. Microsoft Sites grabbed 9.3 percent market share, a 0.4-percentage point gain versus July.

August 2009 U.S. Core Search Rankings


Google Sites led the U.S. core search market in August with 64.6 percent of the searches conducted, followed by Yahoo! Sites (19.3 percent), and Microsoft Sites (9.3 percent). Ask Network captured 3.9 percent of the search market, followed by AOL LLC with 3.0 percent.

_____________________________________________________________________________

comScore Core Search Report*
August 2009 vs. July 2009
Total U.S. – Home/Work/University Locations
Source: comScore qSearch
Core Search Entity    Share of Searches (%)
Jul-09       Aug-09       Point Change
Aug-09 vs. Jul-09
Total Core Search     100.0%       100.0%                N/A
Google Sites           64.7%        64.6%               -0.1
Yahoo! Sites           19.3%        19.3%                0.0
Microsoft Sites         8.9%         9.3%                0.4
Ask Network             3.9%         3.9%                0.0
AOL LLC Network         3.1%         3.0%               -0.1

* Based on the five major search engines including partner searches and cross-channel searches. Searches for mapping, local directory, and user-generated video sites that are not on the core domain of the five search engines are not included in the core search numbers.
_____________________________________________________________________________

Americans conducted 13.9 billion searches in August, up 3 percent from July. Google Sites accounted for 9 billion searches, followed by Yahoo! Sites (2.7 billion), Microsoft Sites (1.3 billion), Ask Network (541 million) and AOL LLC (415 million).

_____________________________________________________________________________
comScore Core Search Report*
August 2009 vs. July 2009
Total U.S. – Home/Work/University Locations
Source: comScore qSearch
Core Search Entity    Search Queries (MM)
Jul-09       Aug-09       Percent Change
Aug-09 vs. Jul-09
Total Core Search     13,575       13,924                   3%
Google Sites           8,783        8,994                   2%
Yahoo! Sites           2,625        2,685                   2%
Microsoft Sites        1,208        1,288                   7%
Ask Network              536          541                   1%
AOL LLC                  424          415                  -2%

* Based on the five major search engines including partner searches and cross-channel searches. Searches for mapping, local directory, and user-generated video sites that are not on the core domain of the five search engines are not included in the core search numbers.
_____________________________________________________________________________

August 2009 U.S. Expanded Search Rankings

In the August 2009 analysis of the top properties where search activity is observed, Google Sites led the search market with 13 billion search queries, followed by Yahoo! Sites with 2.8 billion queries. Microsoft Sites ranked third with more than 1.3 billion searches, up 6 percent from July, followed by craigslist, inc. with 682 million searches. Facebook.com experienced the largest growth of the top ten expanded search properties with a 20-percent increase in query volume to 324 million searches.

_____________________________________________________________________________
comScore Expanded Search Query Report
August 2009 vs. July 2009
Total U.S. – Home/Work/University Locations
Source: comScore qSearch
Expanded Search Entity        Search Queries (MM)
Jul-09       Aug-09       Percent Change
Aug-09 vs. Jul-09
Total Internet                21,558       21,801                   1%
Google Sites                  12,851       13,006                   1%
Google                     9,217        9,437                   2%
YouTube/All Other         3,634        3,569                  -2%
Yahoo! Sites                   2,762        2,800                   1%
Yahoo!                     2,738        2,776                   1%
All Other                    24           24                   0%
Microsoft Sites                1,262        1,343                   6%
Bing                       1,076        1,151                   7%
Microsoft/All Other         186          192                   3%
craigslist, inc.                 673          682                   1%
AOL LLC                          697          673                  -3%
AOL Search Network           362          354                  -2%
MapQuest/All Other          335          319                  -5%
eBay                             709          650                  -8%
Ask Network                      613          646                   5%
ASK.COM                      338          343                   1%
MyWebSearch.com/ All Other  275          303                  10%
Fox Interactive Media            603          569                  -6%
MySpace Sites                596          562                  -6%
All Other                     7            7                   0%
Facebook.com                     270          324                  20%
Amazon Sites                     197          216                  10%
_____________________________________________________________________________

About comScore
comScore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital marketing intelligence. For more information, please visit www.comscore.com/companyinfo.