comScore Networks is a global leader in measuring the digital age. Through its proprietary technology, comScore measures what matters across a broad spectrum of behavior and attitudes and then determines the size and characteristics of the total online population via a continuous survey spanning tens of thousands of persons over the course of a year. This information network is 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. Respondents are asked a variety of questions about their Internet use, as well as descriptive information about themselves and their households. The result is an accurate and up-to-date picture of the universe to which the comScore sample is projected. comScore's products and services are utilized by many of the world's leading corporations to better understand, leverage and profit from the rapidly evolving worldwide Web.

24/7 Real Media, Inc. is a leading global digital marketing company, empowering advertisers and publishers to engage their target audiences with greater precision, and to achieve transparency and greater ROI. Using its award winning ad serving, targeting, tracking, and analytics platform, powerful search marketing capabilities and global network of specialized Web sites, the company has turned the art of reaching audiences across virtually any digital medium into a measurable science. The company is headquartered in New York, with 20 offices in 12 countries throughout North America, Europe and Asia Pacific. 24/7 Real Media: The Science of Digital Marketing.