Comscore Releases October U.S. Search Engine Rankings

RESTON, VA, November 21, 2007 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly Comscore qSearch analysis of the search marketplace. Among core search engines in October 2007, Google Sites remained the top search property with more than 6.1 billion core searches conducted, representing a 58.5 percent share of the search market. October was a strong month for overall search activity, as each of the five core search engines achieved at least 5 percent growth in the number of searches conducted.

October U.S. Core Search Rankings

In October, Google Sites increased its lead atop the core search ranking with 58.5 percent of U.S. searches, gaining 1.5 share points versus the previous month. Yahoo! Sites ranked second with 22.9 percent, followed by Microsoft Sites (9.7 percent), Ask Network (4.7 percent) and Time Warner Network (4.2 percent).

Comscore Core Search Report*
October 2007
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch 2.0

Core Search Entity

Share of Searches (%)

Sep - 07

Oct -07

Point Change Oct-07 vs. Sep-07

Total Core Search

100.0%

100.0%

0.0

Google Sites

57.0%

58.5%

1.5

Yahoo! Sites

23.7%

22.9%

-0.8

Microsoft Sites

10.3%

9.7%

-0.6

Ask Network

4.7%

4.7%

0.0

Time Warner Network

4.3%

4.2%

-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.

In October, Americans conducted 10.5 billion searches at the core search engines, marking a 12-percent increase versus September. More than 6.1 billion core searches were conducted at Google Sites during the month (up 15 percent), while Yahoo! Sites recorded 2.4 billion (up 8 percent). All core search engines posted solid gains in search query volume in October.

Comscore Core Search Report*
October 2007
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch 2.0

Core Search Entity

Search Queries (MM)

Sep-07

Oct-07

Percent Change Oct-07 vs. Sep-07

Total Core Search

9,400

10,512

11.8%

Google Sites

5,356

6,151

14.8%

Yahoo! Sites

2,227

2,405

8.0%

Microsoft Sites

969

1,023

5.6%

Ask Network

444

491

10.7%

Time Warner Network

405

443

9.4%

* 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.

October U.S. Expanded Search Rankings

In the October 2007 analysis of the Top 50 properties worldwide where search activity is observed, Google Sites led the pack with approximately 7.5 billion searches. Yahoo! Sites ranked second with nearly 2.6 billion searches, followed by Microsoft Sites (1 billion), Time Warner Network (905 million) and Ask Network (493 million). Ask.com saw particularly strong growth, gaining nearly 23 percent in search query volume versus September, while Facebook.com entered the ranking at number 9 with 152 million searches.

Comscore Expanded Search Query Report
October 2007
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch 2.0

Expanded Search Entity

Search Queries (MM)

Sep-07

Oct-07

Percent Change Oct-07 vs. Sep-07

Total Expanded Search

13,018

14,457

11.1%

Google Sites

6,593

7,468

13.3%

Google

5,388

6,184

14.8%

YouTube/All Other

1,205

1,284

6.5%

Yahoo! Sites

2,381

2,577

8.2%

Yahoo!

2,346

2,538

8.2%

All Other

35

39

11.4%

Microsoft Sites

999

1,044

4.5%

MSN-Windows Live

966

1,007

4.2%

Microsoft/All Other

33

37

12.1%

Time Warner Network

843

905

7.4%

AOL

397

433

9.1%

Mapquest/All Other

446

472

5.8%

Ask Network

445

493

10.8%

Ask.com

226

277

22.6%

MyWebSearch.com/ All Other

219

216

-1.4%

Fox Interactive Media

492

483

-1.8%

MySpace

483

475

-1.7%

All Other

9

8

-11.1%

eBay

445

472

6.1%

Craigslist.org

197

214

8.6%

Facebook.com

N/A

152

N/A

Amazon Sites

138

146

5.8%

To request more information on Comscore qSearch 2.0, please visit http://www.comscore.com/contact
Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world. This capability is based on a massive, global cross-section of more than 2 million consumers who have given Comscore permission to confidentially capture their browsing and transaction behavior, including online and offline purchasing. Comscore panelists also participate in survey research that captures and integrates their attitudes and intentions. Through its proprietary technology, Comscore measures what matters across a broad spectrum of behavior and attitudes. Comscore analysts apply this deep knowledge of customers and competitors to help clients design powerful marketing strategies and tactics that deliver superior ROI. Comscore services are used by more than 800 clients, including global leaders such as AOL, Microsoft, Yahoo!, BBC, Carat, Cyworld, Deutsche Bank, France Telecom, Best Buy, The Newspaper Association of America, Financial Times, ESPN, Fox Sports, Nestlé, Starcom, Universal McCann, the United States Postal Service, Verizon, ViaMichelin, Merck and Expedia. For more information, please visit www.comscore.com

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

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