comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the comScore Video Metrix service showing that 174 million U.S. Internet users watched online video content in March for an average of 14.8 hours per viewer. The total U.S. Internet audience engaged in more than 5.7 billion viewing sessions during the course of the month.

The full version of the press release is available at: http://www.comscore.com/Press_Events/Press_Releases/2011/4/comScore_Releases_March_2011_U.S._Online_Video_Rankings

Please let me know if you have any questions or would like to speak with an analyst. 

Thank you,
Stephanie Lyn Flosi
comScore, Inc.
press@comscore.com
+1 (312) 777-8801

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