Comscore Video Metrix Launched in U.K., France, Germany and Canada

New Online Measurement Service Will Support the Growth of Online Video Advertising

Google Sites Ranks as Most Popular Online Video Property in All Reported Countries

LONDON, U.K., April 10, 2008 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today announced the availability of Comscore Video Metrix in four new markets: the U.K., France, Germany and Canada. Comscore Video Metrix, which was the first to market in the U.S. more than two years ago, has become the leading service for online video measurement and is now the first service of its kind in each of these four new markets.

“Recent years have seen an explosion in online video viewing, not just in the U.S. but globally, representing a robust online advertising opportunity for marketers,” said Jack Flanagan, executive vice president of Comscore. “With Comscore Video Metrix, marketers will be able to better plan advertising to a highly-engaged, but often elusive audience, that typically spends less time with traditional media.”

Canada Shows Heavy Online Video Viewing Activity

Of the five countries currently reported by Comscore Video Metrix, online video had the highest reach in Canada, where 19 million viewers viewed a video online in December, representing 89 percent of the total online population age 15 and older. The U.K. was next with an 87 percent reach, followed by France with an 84 percent reach and Germany with an 81 percent reach. Penetration was slightly lower in the U.S., where online video reached 78 percent of the total online population.

Canada’s online video audience also viewed more videos than any of the other reported countries, averaging 112 videos per viewer for the month of December, followed by the U.K. with 108 videos per viewer, Germany with 92 videos per viewer, and France with 89 videos per viewer. Again, U.S. activity was slightly lower, averaging 77 videos per viewer in December.

Online Video Viewing Reach – Country by Country Breakdown*
Ranked by Percent Reach of Total Online Population, Age 15+**
December 2007
Comscore Video Metrix

Country

Total Unique Viewers (000)

Videos (000)

Videos per Viewer

% Reach Online

Population

Canada

19,047

2,137,074

112

89%

U.K.

28,686

3,092,867

108

87%

France

24,063

2,138,802

89

84%

Germany

27,321

2,514,039

92

81%

U.S.

124,362

9,509,544

77

78%

*Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.

**2+ Universe available in U.S. and Canada, 15+ in U.K., France and Germany. This report examines 15+ universes across all reportable countries to provide a like for like comparison.

Google Sites Leads in All Reported Countries

Driven largely by video viewership at YouTube.com, Google Sites led as the most popular online video destination in all reported countries. However, beyond this there were strong performances from key local players, with BBC Sites ranked second in the U.K., DailyMotion.com ranked second in France, and Vivendi ranked second in Germany. Microsoft Sites was amongst the top 5 ranked video sites in the U.S., U.K. and Canada, but not in France and Germany.

Top 5 Video Properties in all Reported Video Metrix Countries*
Ranked by Total Videos (000) Viewed by Unique Viewers, Age 15+ **
December 2007
Comscore Video Metrix

U.S.

Canada

U.K.

France

Germany

Google Sites

Google Sites

Google Sites

Google Sites

Google Sites

Fox Interactive Media

Microsoft Sites

BBC Sites

DailyMotion.com

Vivendi

Yahoo! Sites

CTVglobemedia

Microsoft Sites

Groupe TF1

ProSiebenSat1 Sites

Viacom Digital

Yahoo! Sites

Yahoo! Sites

Amazon Sites

CLIPFISH.DE

Microsoft Sites

DAILYMOTION.COM

Fox Interactive Media

Yahoo! Sites

Fox Interactive Media

*Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.

**2+ Universe available in U.S. and Canada, 15+ in U.K., France and Germany. This report examines 15+ universes across all reportable countries to provide consistent comparisons.

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

Ayaan Mohamud
Comscore, Inc.
+ 44 (0) 207-099-1775
worldpress@comscore.com