Nielsen Company

Overview
The http://www.nielsen.com Nielsen Company] is a global information and measurement company in marketing and consumer information, television and other media measurement, online intelligence, mobile measurement, trade shows, and related assets. The company has a presence in approximately 100 countries, with headquarters in New York.

Source

 * Social Media: Federal Agencies Need Policies and Procedures for Managing and Protecting Information They Access and Disseminate, at 3 n.7.