Comscore Releases August 2009 U.S. Search Engine Rankings

RESTON, VA, September 22, 2009 – 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 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.

Press
Bill Daddi
Daddi Brand Communications
646-370-1341
press@comscore.com