comScore Ranks the Top 50 U.S. Digital Media Properties for March 2015

comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly ranking of U.S. online activity at the top digital media properties for March 2015 based on data from the comScore Media Metrix® and Media Metrix® Multi-Platform services. Google Sites ranked as the top multi-platform property with 241.6 million unique visitors/viewers across desktop and mobile, while also ranking as the top desktop property with 204.6 million visitors. AddThis topped the Ad Focus ranking with a U.S. desktop internet reach of 96.3 percent.