May 2009 U.S. Core Search Rankings

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sjim
06/18/09

RESTON, VA, June 17, 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 May 2009, Americans conducted 14.3 billion core searches.

May 2009 U.S. Core Search Rankings

Google Sites led the U.S. core search market in April with 65.0 percent of the searches conducted, followed by Yahoo! Sites (20.1 percent), Microsoft Sites (8.0 percent), Ask Network (3.9 percent) and AOL LLC (3.1 percent).

Follow up:

comScore Core Search Report* May 2009 vs. April 2009 Total U.S. – Home/Work/University Locations Source: comScore qSearch
Core Search Entity	Share of Searches (%)
Core Search Entity	Apr-09	May-09	Point Change May-09 vs. Apr-09
Total Core Search	100.0	100.0	N/A
Google Sites	64.2	65.0	0.8
Yahoo! Sites	20.4	20.1	-0.3
Microsoft Sites**	8.2	8.0	-0.2
Ask Network	3.8	3.9	0.1
AOL LLC	3.4	3.1	-0.3

* 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.
**May data does not include search activity at Microsoft Bing, which was launched on June 1. Microsoft Bing will be included with June qSearch data.

Americans conducted 14.3 billion searches at the core search engines. Google Sites accounted for 9.3 billion core searches, followed by Yahoo! Sites with 2.9 billion and Microsoft Sites with 1.1 billion.

comScore Core Search Report* May 2009 vs. April 2009 Total U.S. – Home/Work/University Locations Source: comScore qSearch
Core Search Entity	Search Queries (MM)
Core Search Entity	Apr-09	May-09	Percent Change May-09 vs. Apr-09
Total Core Search	14,751	14,327	-3
Google Sites	9,476	9,307	-2
Yahoo! Sites	3,008	2,877	-4
Microsoft Sites**	1,208	1,149	-5
Ask Network	563	555	-1
AOL LLC	496	438	-12

May 2009 U.S. Expanded Search Rankings

In the comScore May 2009 analysis of the top properties where search activity is observed, Google Sites led with 13 billion searches. Yahoo! Sites ranked second with 3 billion searches, followed by Microsoft Sites (1.2 billion) and AOL LLC (721 million).

comScore Expanded Search Query Report May 2009 vs. April 2009 Total U.S. – Home/Work/University Locations Source: comScore qSearch
Expanded Search Entity	Search Queries (MM)
Expanded Search Entity	Apr-09	May-09	Percent Change May-09 vs. Apr-09
Total Expanded Search	22,067	21,818	-1%
Google Sites	13,041	13,035	0%
Google	9,830	9,680	-2%
YouTube/All Other	3,211	3,355	4%
Yahoo! Sites	3,161	3,021	-4%
Yahoo!	3,135	2,995	-4%
All Other	26	26	0%
Microsoft Sites*	1,250	1,194	-4%
MSN-Windows Live	1,158	1,103	-5%
Microsoft/All Other	92	91	-1%
AOL LLC	795	721	-9%
AOL Search Network	427	374	-12%
MapQuest/All Other	368	347	-6%
Ask Network	705	691	-2%
Ask.com	402	382	-5%
MyWebSearch.com/ All Other	303	309	2%
craigslist, inc.	583	651	12%
Fox Interactive Media	666	644	-3%
MySpace Sites	658	636	-3%
All Other	8	8	0%
eBay	654	634	-3%
Amazon Sites	188	185	-2%
Facebook.com	176	184	5%

*May data does not include search activity at Microsoft Bing, which was launched on June 1. Microsoft Bing will be included with June qSearch data.

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