Comscore Releases April 2009 U.S. Search Engine Rankings

RESTON, VA, May 18, 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 April 2009, Americans conducted 14.8 billion core searches, a 3-percent gain versus March.

April 2009 U.S. Core Search Rankings

Google Sites led the U.S. core search market in April with 64.2 percent of the searches conducted, followed by Yahoo! Sites (20.4 percent), Microsoft Sites (8.2 percent), Ask Network (3.8 percent) and AOL LLC (3.4 percent).

Comscore Core Search Report*
April 2009 vs. March 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Share of Searches (%)
Mar-09 Apr-09 Point Change Apr-09 vs. Mar-09
Total Core Search 100.0 100.0 N/A
Google Sites 63.7 64.2 0.5
Yahoo! Sites 20.5 20.4 -0.1
Microsoft Sites 8.3 8.2 -0.1
Ask Network 3.8 3.8 0.0
AOL LLC 3.7 3.4 -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.

Americans conducted 14.8 billion searches at the core search engines, up 3 percent from March. Google Sites accounted for 9.5 billion core searches, followed by Yahoo! Sites with 3 billion and Microsoft Sites with 1.2 billion.

Comscore Core Search Report*
April 2009 vs. March 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Search Queries (MM)
Mar-09 Apr-09

Percent Change

Apr-09 vs. Mar-09
Total Core Search 14,331 14,751 3%
Google Sites 9,125 9,476 4%
Yahoo! Sites 2,939 3,008 2%
Microsoft Sites 1,191 1,208 1%
Ask Network 547 563 3%
AOL LLC 529 496 -6%

* 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.

April 2009 U.S. Expanded Search Rankings

In the Comscore April 2009 analysis of the top properties where search activity is observed, Google Sites led with 13 billion searches, up 5 percent versus March. Yahoo! Sites ranked second with 3.2 billion searches, followed by Microsoft Sites (1.3 billion) and AOL LLC (795 million).

Comscore Expanded Search Query Report
April 2009 vs. March 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch

Expanded Search Entity

 Search Queries (MM)
Mar-09 Apr-09 Percent Change Apr-09 vs. Mar-09
Total Expanded Search 21,038 22,067 5%
Google Sites 12,362 13,041 5%
Google 9,419 9,830 4%
YouTube/All Other 2,943 3,211 9%
Yahoo! Sites 3,083 3,161 3%
Yahoo! 3,058 3,135 3%
All Other 25 26 4%
Microsoft Sites 1,235 1,250 1%
MSN-Windows Live 1,136 1,158 2%
Microsoft/All Other 99 92 -7%
AOL LLC 813 795 -2%
AOL Search Network 445 427 -4%
MapQuest/All Other 368 368 0%
Ask Network 696 705 1%
Ask.com 382 402 5%
MyWebSearch.com/ All Other 314 303 -4%
Fox Interactive Media 581 666 15%
MySpace Sites 573 658 15%
All Other 8 8 0%
eBay 545 654 20%
craigslist, inc. 559 583 4%
Amazon Sites 191 188 -2%
Facebook.com 246 176 -28%

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