comScore Releases June 2009 U.S. Search Engine Rankings

Ad Operations OnlineRESTON, VA, July 16, 2009 – comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, released its monthly comScore qSearch analysis of the U.S. search marketplace. In June 2009, Americans conducted more than 14 billion core searches, with Google Sites accounting for 65.0 percent search market share. Microsoft Sites grabbed 8.4 percent market share, a 0.4 percentage point gain versus May, after introducing its new search engine, Bing.

June 2009 U.S. Core Search Rankings

Google Sites led the U.S. core search market in June with 65.0 percent of the searches conducted, followed by Yahoo! Sites (19.6 percent), and Microsoft Sites (8.4 percent). Ask Network captured 3.9 percent of the search market, followed by AOL LLC with 3.1 percent.

_________________________________________________________________________________

comScore Core Search Report

June 2009 vs. May 2009

Total – U.S. – Home/Work/University Locations
Source: comScore qSearch
Core Search Entity                          Share of Searches (%)

May-09        Jun-09         Point Change
Jun-09 vs. May-09

Total Core Search                  100.0%       100.0%                 N/A
Google Sites                        65.0%        65.0%                 0.0
Yahoo! Sites                        20.1%        19.6%                -0.5
Microsoft Sites                      8.0%         8.4%                 0.4
Ask Network                          3.9%         3.9%                 0.0
AOL LLC                              3.1%         3.1%                 0.0

* 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 14 billion searches in June, down slightly from May. Google Sites accounted for 9.1 billion searches, followed by Yahoo! Sites (2.8 billion), Microsoft Sites (1.2 billion), Ask Network (552 million) and AOL LLC (439 million).

comScore Core Search Report*

June 2009 vs. May 2009
Total U.S. – Home/Work/University Locations
Source: comScore qSearch

Core Search Entity                           Search Queries (MM)

May-09        Jun-09        Percent Change
Jun-09 vs. May-09

Total Core Search                14,327        14,060               -2%
Google Sites                      9,307         9,135               -2%
Yahoo! Sites                      2,877         2,755               -4%
Microsoft Sites                   1,149         1,179                3%
Ask Network                         555           552                0%
AOL LLC                             438           439                0%

* 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.

_________________________________________________________________________________

June 2009 U.S. Expanded Search Rankings

In the June 2009 analysis of the top properties where search activity is observed, Google Sites led the search market with 13.1 billion searches, followed by Yahoo! Sites with 2.9 billion. Microsoft Sites ranked third with 1.2 billion searches, up 3 percent from May, followed by AOL LLC with 736 million. Facebook.com experienced the highest growth of the top ten expanded search properties with a 9-percent increase.

Follow the link to see Table 3

http://comscore.com/Press_Events/Press_Releases/2009/7/comScore_Releases_June_2009_U.S._Search_Engine_Rankings

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.