Comscore Releases February 2013 U.S. Online Video Rankings Google Sites Delivers Record-Breaking 2.2 Billion Video Ads in February RESTON, VA, March 14, 2013 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the Comscore Video Metrix service showing that 178 million Americans watched 33 billion online content videos in February, while the number of