Comscore Releases Top Japanese Web Rankings for August

Yahoo! Sites Continue to Lead as Wikipedia Experiences Growth

Tokyo, Japan, September 28, 2007 – Comscore (NASDAQ: SCOR), a leader in measuring the digital world, today released its ranking of the top Internet and top-gaining properties in Japan based on data collected through its Comscore World Metrix audience ratings service. In August, nearly 54 million people in Japan age 15 or older went online from either home or work locations, averaging 19 hours online during the month.

Top 10 Properties for August
Yahoo! Sites remained the top-ranked property in Japan with more than 41 million visitors, drawing almost the same number of visitors as July. Google Sites ranked second with 30.8 million visitors, while Microsoft Sites ranked third with 29.7 million visitors.

“Since our first official ranking in June, we have seen Yahoo!, Google and Microsoft Sites remain unchanged as the top three properties in Japan,” said Maru Sato, Managing Director of Comscore Japan. “Among the top ten properties, only Wikipedia Sites experienced growth of any significance in August, which tends to be a less active month online due to summer holidays.”

*Ranking based on the top 100 Japanese properties in August 2007.
** Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.
*** Livedoor experienced a definitional change in August that does not make it trendable with July’s data.

Top-Gaining Properties for August

Several sports-related sites experienced substantial growth in August. Sponichi.co.JP, a professional sports news site, was the top-gaining property for the month, rising 31 percent to 2.8 million visitors, while Spanspo.com jumped 16 percent to nearly 2.3 million visitors, and Nikkansports.com climbed 9 percent to more than 3.2 million visitors.

Mizuho Financial Group, which has continued to see increases over the past several months, was the second fastest growing site with a 30-percent increase to 2.3 million visitors, followed by OKWave.JP, which rose 28 percent to 2.5 million visitors.

“Both baseball and soccer are reaching key points in their seasons, and along with the interest in the Yokozuna scandal in Sumo Wrestling, it is not surprising that sports news sites had such a presence in this month’s rankings,” continued Mr. Sato. “The Internet gives people the ability to easily follow their favorite teams and players, both here and abroad.”

*Ranking based on the top 100 Japanese properties in August 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