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Blog Jun. 6, 2007 | Share

comScore's Cookie Deletion White Paper Now Available

comScore's cookie deletion white paper is now available to the public. This white paper goes into much greater detail than previously released, and is a must-read for those serious about understanding Web measurement. Please visit <a href=""></a>... Read more

Whitepaper Jun. 6, 2007 | Share

Cookie Deletion Whitepaper

The study addresses the key sources of discrepancy between server-based and panel-based data and reveals that cookie deletion can lead to large overstatements in servers’ measurement of the size of online audiences. Read more

Press Release Jun. 5, 2007 | Share

Google Sites Ranked by comScore as Top U.S. Video Property in March 2007

comScore today released its comScore Video Metrix rankings for March 2007, showing Google Sites as the top U.S. streaming video property with 57.4 million unique people streaming (“streamers”) and 1.2 billion video streams initiated. drove the lion’s share of the video streaming activity at the Google Sites property with 53.5 million... Read more

Blog Jun. 4, 2007 | Share

Thoughts on Wal-Mart and ISP Data

Last month in the Wall Street Journal, I read an article by Carl Bialik, aka “The Numbers Guy,” in which he mentioned the use of retailers’ UPC sales scanner data in the consumer packaged goods industry for measuring manufacturers’ market share trends. According to The Numbers Guy “Industrywide U.S. sales data have been hamstrung by the omission... Read more

Press Release May. 31, 2007 | Share

Marvin J. Pollack Joins comScore as Head of Marketing Communications

CHICAGO, May 31, 2007 – comScore today announced the appointment of Marvin J. Pollack as senior vice president of marketing communications. Read more

Press Release May. 30, 2007 | Share Draws a Majority of Traffic from Overseas Fans in April 2007

RESTON, VA, May 30, 2007 – comScore today released the results of study of global visitation to, revealing that 12.4 million people age 15 or older from around the world visited the Web site in April 2007. The study also revealed that International visitors represented the majority of the traffic, with more than half (54 percent) coming... Read more

Blog May. 30, 2007 | Share

From “Goat” to “Hero”: The Saga of the IAB Summit

Who would have thought, a few weeks ago, that Randy Rothenberg, President & CEO of the IAB, would refer to comScore and Netratings as “the heroes of the interactive marketing and media ecosystem”? Read more

Blog May. 21, 2007 | Share

Younger Consumers Receptive to Advertising on User-Generated Content Sites

In light of the rumors swirling around Yahoo's potential acquisition of Bebo, I thought it would be interesting to take a look at a recent comScore study of consumers' receptivity to advertising in different media formats. Read more

Press Release May. 21, 2007 | Share

Online Health Information Category Grows 12 Percent in Q1 2007

RESTON, VA, May 21, 2007 – comScore today released the results of a study on consumer usage of online health information resources. During the first quarter of 2007, the health information category reached an average of 55.3 million monthly U.S. visitors (31 percent of the total U.S. Internet audience), an increase of 12 percent versus the same... Read more

Press Release May. 16, 2007 | Share

comScore Study Reveals that Males Between the Ages of 18-24 More Likely to Download Podcasts via iTunes

RESTON, VA, May 16, 2007 – comScore today released the results of a study profiling the iTunes podcasting audience. The study, sponsored by mobile advertising enabler Ad Infuse, focused on those users who downloaded podcasts via iTunes in October 2006. Read more