Comscore Releases Top Japanese Web Rankings for September

Yahoo! Remains Leading Internet Property in Japan

Grand Prix Sparks Growth to Automotive Sites

Tokyo, Japan, October 25, 2007 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its September rankings of the ten largest and fastest growing Internet properties in Japan based on data from the Comscore World Metrix service. The month saw Yahoo! Sites continue to lead the top 10, with Wikipedia Sites jumping one spot to capture the number eight position.

Top 10 Properties for September

Yahoo! Sites remained the top-ranked property in Japan with 40.7 million visitors, while Google Sites experienced a 4-percent gain from August to September and ranked second with more than 32 million visitors. Microsoft followed in third with 30 million visitors (up 1 percent).

“After experiencing a slight decline last month, Google regained its upward trend,” said Maru Sato, Managing Director of Comscore Japan. “Meanwhile, Wikipedia continued to gain traction in the Japanese market, as it posted the largest increase within the top 10 for the second consecutive month.”

*Ranking based on the top 100 Japanese properties in September 2007.
** Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.

Top-Gaining Properties for September

Following its recent site redesign and aggressive sponsored link campaign, comparison shopping site Become.co.jp experienced a 72-percent jump to 2.2 million visitors, making it the top-gaining property for the month.

With social networking continuing its rise as a global phenomenon, Fox Interactive Media, which includes MySpace.com, gained 14 percent, reaching 2.5 million visitors for the month.

The Honda and Toyota properties both saw gains with the Formula 1™ Fuji Television Japanese Grand Prix at the end of September. Honda experienced a 41-percent increase to more than 2.1 million visitors, and Toyota saw a 29-percent gain to 2.5 million visitors for the month.

*Ranking based on the top 100 Japanese properties in September 2007.
** Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.

About Comscore
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 700 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

Contact:
Sarah Radwanick
Director, Regional Product Marketing
Comscore, Inc.
+44 (0) 20 7099 1784
worldpress@comscore.com