Comscore Will Report Third Quarter 2008 Financial Results on October 30, 2008

RESTON, VA, October 3, 2008 – Comscore, Inc. (NASDAQ: SCOR), will report financial results for the quarter ended September 30, 2008 in a live conference call on Thursday, October 30 at 4:30 p.m. ET.

Dr. Magid Abraham, President and Chief Executive Officer, and John Green, Chief Financial Officer, will provide commentary on the company's results at that time.

Dial-in information for the call will be released at a later date.

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital marketing intelligence. In an independent survey of 800 of the most influential publishers, advertising agencies and advertisers conducted by William Blair & Company in July 2008, Comscore was rated the ‘most preferred online audience measurement service’ by 54% of respondents, a full 20 points ahead of its nearest competitor. Comscore’s capabilities are based on a massive, global cross-section of approximately 2 million Internet users 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 gathers and integrates their attitudes and intentions. Using its proprietary technology, Comscore measures what matters across a broad spectrum of digital behavior and attitudes, helping clients design more powerful marketing strategies that deliver superior ROI. With its recent acquisition of M:Metrics, Comscore is also a leading source of data on mobile usage. Comscore services are used by more than 1,100 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, the University of Chicago, Verizon Services Group and ViaMichelin. For more information, please visit www.comscore.com.

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