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Blog Jul. 2, 2012 | Share

When the Cookie Crumbles

With the rising popularity of social media and online video, along with the growing adoption of smartphones and other connected devices, the Internet continues to consume an increasing amount of time in the daily lives of millions of consumers. For brands around the globe, the Internet has also emerged as a significant advertising channel. Consider... Read more

Blog Jun. 8, 2009 | Share

Thoughts on the Media Metrix 360 Announcement at the Conversational Media Summit

Last Monday I spoke to a packed room at Federated Media’s Conversational Marketing Summit in New York, where I announced comScore’s new digital audience measurement initiative, Media Metrix 360. Read more

Blog Feb. 21, 2008 | Share

The Ugly Reality of Using Site Server Data for Media Planning

Kevin Mannion’s January 25 blog about engagement metrics on MediaPost’s Online Metrics Insider raises some interesting issues about online measurement, but fails to address the inability of site server data to provide any of the key people-based metrics that are needed for online media planning and analysis. In the world of online media, I never... Read more

Blog Oct. 23, 2007 | Share

The Challenges of Reconciling Panel-Based and Server-Based Unique Visitor Counts

Louise Story’s October 22nd article in the New York Times, entitled “How Many Site Hits? Depends Who’s Counting” highlights the challenges of getting up to speed on the continuing debate about the differences between the online unique visitor counts provided by publishers’ web server logs and the independently measured unique visitor counts... Read more

Blog Apr. 17, 2007 | Share

Cookie Deletion Rates and the Impact on Unique Visitor Counts

We issued an important press release today showing the results of a comScore study on the rate of cookie deletion, and the impact this has on the accuracy of cookie-based server data in measuring unique visitors (UVs) to a site or the reach and frequency (R/F) of an online ad campaign. We based the study on the comScore U.S. database of 400,000 computers.... Read more