Comscore Releases April 2014 U.S. Online Video Rankings

RESTON, VA, May 21, 2014 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the Comscore Video Metrix® service showing that 186.1 million Americans watched online content videos in April 2014. Google Sites ranked as the top video content property, BrightRoll Platform was the top video ad property, and VEVO topped the list of YouTube partner channels.

Top 10 Video Content Properties by Unique Viewers
Google Sites, driven primarily by video viewing at YouTube.com, ranked as the top online video content property in April with 155.7 million unique viewers. Facebook ranked #2 with 87 million viewers, followed by AOL, Inc. with 65.3 million, Yahoo Sites with 52.2 million and NDN with 45 million.

*A video is defined as any streamed segment of audiovisual content, including both progressive downloads and live streams. For long-form, segmented content, (e.g. television episodes with ad pods in the middle) each segment of the content is counted as a distinct video stream.Video views are inclusive of both user-initiated and auto-played videos that are viewed for longer than 3 seconds.

Top 10 Video Ad Properties by Percent Reach of Unique Viewers
BrightRoll Platform ranked #1 in video ad reach, serving ads to 53.8 percent of the total U.S. population in April. Specific Media came in second with 42.9 percent reach, followed by LiveRail with 42 percent, AOL, Inc. with 38.3 percent and Google Sites with 35.2 percent.

*Video ads include streaming-video advertising only and do not include other types of video monetization, such as overlays, branded players, matching banner ads, etc.
**Indicates video ad network
†Indicates video ad exchange/DSP/SSP

Top 10 YouTube Partner Channels by Unique Viewers
The April 2014 YouTube partner data revealed that video music channel VEVO maintained the top position in the ranking with 35.8 million viewers. Fullscreen held onto the #2 spot with 25.6 million unique viewers, followed by ZEFR with 24.5 million, Maker Studios Inc. with 24.4 million and Warner Music with 23.6 million.

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in digital measurement and analytics, delivering insights on web, mobile and TV consumer behavior that enable clients to maximize the value of their digital investments. For more information, please visit www.comscore.com/companyinfo.