Comscore Appointed as Independent 3rd Party for Site Vetting by IAB U.K. Internet Advertising Sales Houses Council (IASH)

LONDON, U.K., August 5, 2009 –Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today announced that it had been selected as the sole independent provider of centralized site content vetting on behalf of the Internet Advertising Sales Houses (IASH) – the official sales house council of the IAB in the U.K.

The site vetting initiative requires the classification of more than 12,000 sites by degrees of suitability for hosting display advertising, thereby providing advertisers and agencies with greater transparency into what type of content their ads are being delivered against through online advertising networks. This effort will deliver greater trust, transparency and confidence to advertisers and agencies who want to be assured that their ads are not being delivered alongside potentially objectionable content.

“Increased site content transparency is essential for the continued growth of online advertising, not only in the U.K. but across Europe,” said Mike Read, SVP and managing director, Comscore Europe. “Comscore has been working with advertising networks for several years now, and has extensive experience classifying online content. We are delighted to be working with the IAB and providing Comscore’s expertise to the industry, which will ensure the transparency that is critical to the continued growth of advertising networks in Europe.”

“It has been a key objective for IASH to provide our members with a comprehensive and central solution to site vetting,” said Julia Smith, Senior Manager of IASH. “We are delighted to announce that we have selected Comscore to be our partner. It will not only reduce the level of administration for our members, but will provide a high level of independence and consistency within the network ad business model.”

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital marketing intelligence. For more information, please visit www.comscore.com/companyinfo.

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