Press Releases

June 17, 2009

comScore Releases May 2009 U.S. Search Engine Rankings

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).

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 (%)
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)
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

* 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.

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)
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

Contact:
Sarah Radwanick
Lead Corporate Marketing Manager
comScore, Inc.
+44 (0) 20 7099 1784
worldpress@comscore.com