Comscore Releases April 2008 U.S. Search Engine Rankings

RESTON, VA, May 22, 2008 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly Comscore qSearch analysis of the U.S. search marketplace. April 2008 saw Americans conduct 10.6 billion core searches, with Google Sites continuing to gain market share as the leading search engine.

April 2008 U.S. Core Search Rankings

In April, Google Sites extended its share of core searches to 61.6 percent, up from 59.8 percent the previous month. Yahoo! Sites ranked second with 20.4 percent, followed by Microsoft Sites (9.1 percent), AOL LLC (4.6 percent), and Ask Network (4.3 percent).

Comscore Core Search Report*
April 2008 vs. March 2008
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch 2.0

Core Search Entity

Share of Searches (%)

Mar-08

Apr-08

Point Change

Apr-08 vs. Mar-08

Total Core Search

100.0%

100.0%

0.0

Google Sites

59.8%

61.6%

1.8

Yahoo! Sites

21.3%

20.4%

-0.9

Microsoft Sites

9.4%

9.1%

-0.3

AOL LLC

4.8%

4.6%

-0.2

Ask Network

4.7%

4.3%

-0.4

* 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.

Americans conducted 10.6 billion searches at the core search engines, representing a 2-percent decline versus March. Google Sites saw more than 6.5 billion core searches, followed by Yahoo! Sites with 2.2 billion, and Microsoft Sites with 961 million.

Comscore Core Search Report*
April 2008 vs. March 2008
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch 2.0

Core Search Entity

Search Queries (MM)

Mar-08

Apr-08

Percent Change

Apr-08 vs. Mar-08

Total Core Search

10,771

10,582

-2%

Google Sites

6,438

6,514

1%

Yahoo! Sites

2,296

2,159

-6%

Microsoft Sites

1,012

961

-5%

AOL LLC

521

491

-6%

Ask Network

503

458

-9%

* 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 U.S. Expanded Search Rankings

In Comscore’s April 2008 analysis of the Top 50 properties where search activity is observed, Google Sites led with 8.5 billion searches. Yahoo! Sites ranked second with 2.3 billion searches, followed by Microsoft Sites (1 billion), and AOL LLC (839 million).

Comscore Expanded Search Query Report
April 2008 vs. March 2008
Total U.S. – Home/Work/University Locations
Source: Comscore qSearch 2.0

Expanded Search Entity

Search Queries (MM)

Mar-08

Apr-08

Percent Change

Apr-08 vs. Mar-08

Total Expanded Search

15,088

14,988

-1%

Google Sites

8,267

8,467

2%

Google

6,531

6,639

2%

YouTube/All Other

1,736

1,828

5%

Yahoo! Sites

2,391

2,323

-3%

Yahoo!

2,359

2,290

-3%

All Other

32

33

3%

Microsoft Sites

1,054

1,000

-5%

MSN-Windows Live

1,019

964

-5%

Microsoft/All Other

35

36

3%

AOL LLC

891

839

-6%

AOL Search Network*

N/A

459

N/A

MapQuest/All Other

N/A

380

N/A

Ask Network

506

461

-9%

Ask.com

316

298

-6%

MyWebSearch.com/ All Other

190

163

-14%

eBay

474

450

-5%

Fox Interactive Media

377

360

-4%

MySpace

368

354

-4%

All Other

8

6

-21%

Craigslist.org

277

273

-2%

Amazon Sites

149

137

-8%

Facebook.com

107

112

5%

*AOL Search Network is a newly defined entity with April 2008 data and is not directly comparable to previous months of data.

To request more information on Comscore qSearch 2.0, please visit http://www.comscore.com/contact

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world. For more information, please visit www.comscore.com/boilerplate

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