Comscore Releases November 2009 U.S. Search Engine Rankings

RESTON, VA, December 16, 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 November 2009, Americans conducted 14.4 billion core searches, with Google Sites accounting for 65.6 percent search market share, up slightly from 65.4 percent in October. Microsoft Sites grabbed 10.3 percent market share, up 0.4 percentage points versus October.

November 2009 U.S. Core Search Rankings

Google Sites led the U.S. core search market in November with 65.6 percent of the searches conducted, followed by Yahoo! Sites (17.5 percent), and Microsoft Sites (10.3 percent). Ask Network captured 3.8 percent of the search market, followed by AOL LLC with 2.8 percent.

Comscore Core Search Report*
November 2009 vs. October 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Share of Searches (%)
Oct-09 Nov-09 Point Change Nov-09 vs. Oct-09
Total Core Search 100.0% 100.0% N/A
Google Sites 65.4% 65.6% 0.2
Yahoo! Sites 18.0% 17.5% -0.5
Microsoft Sites 9.9% 10.3% 0.4
Ask Network 3.9% 3.8% -0.1
AOL LLC Network 2.9% 2.8% -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 14.4 billion searches in November, up 1 percent from October. Google Sites accounted for 9.5 billion searches, followed by Yahoo! Sites (2.5 billion), Microsoft Sites (1.5 billion), Ask Network (548 million) and AOL LLC (401 million).

Comscore Core Search Report*
November 2009 vs. October 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Core Search Entity Search Queries (MM)
Oct-09 Nov-09 Percent Change Nov-09 vs. Oct-09
Total Core Search 14,309 14,445 1%
Google Sites 9,362 9,479 1%
Yahoo! Sites 2,571 2,534 -1%
Microsoft Sites 1,412 1,483 5%
Ask Network 552 548 -1%
AOL LLC 412 401 -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.

November 2009 U.S. Expanded Search Rankings

In the November analysis of the top properties where search activity is observed, Google Sites led the search market with nearly 13.8 billion search queries, followed by Yahoo! Sites with 2.6 billion queries and Microsoft Sites with 1.5 billion searches. Bing experienced the largest growth of the top ten expanded search properties with a 6-percent increase in query volume to more than 1.3 billion searches. eBay and Amazon Sites both experienced gains in November as consumers ramped up their retail search activity for the holiday season.

Comscore Expanded Search Query Report
November 2009 vs. October 2009
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch
Expanded Search Entity Search Queries (MM)
Oct-09 Nov-09 Percent Change Nov-09 vs. Oct-09
Total Internet 22,032 22,280 1%
Google Sites 13,505 13,751 2%
Google 9,788 9,878 1%
YouTube/All Other 3,717 3,873 4%
Yahoo! Sites 2,663 2,622 -2%
Yahoo! 2,639 2,599 -2%
All Other 24 23 -4%
Microsoft Sites 1,457 1,521 4%
Bing 1,245 1,324 6%
Microsoft/All Other 212 197 -7%
Ask Network 730 715 -2%
ASK.COM 348 348 0%
MyWebSearch.com/ All Other 382 367 -4%
eBay 617 635 3%
AOL LLC 628 611 -3%
AOL Search Network 359 349 -3%
MapQuest/All Other 269 262 -3%
craigslist, inc. 594 568 -4%
Fox Interactive Media 478 447 -6%
MySpace Sites 472 439 -7%
All Other 6 8 33%
Facebook.com 331 354 7%
Amazon Sites 212 250 18%

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