Comscore Releases May 2014 U.S. Online Video Rankings

RESTON, VA, June 16, 2014 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the Comscore Video Metrix® service showing that 183.5 million Americans watched online content videos in May 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 May with 150.3 million unique viewers. Facebook ranked #2 with 81.4 million viewers, followed by AOL, Inc. with 66.2 million, Yahoo Sites with 51.8 million and NDN with 41.2 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 51.3 percent of the total U.S. population in May. Specific Media came in second with 44.4 percent reach, followed by LiveRail with 37.2 percent, AOL, Inc. with 35 percent and Google Sites with 34.1 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 May 2014 YouTube partner data revealed that video music channel VEVO maintained the top position in the ranking with 36.8 million viewers. Maker Studios Inc. climbed into the #2 spot with 32 million unique viewers, followed by Fullscreen with 28.4 million, ZEFR with 24.2 million and Warner Music with 23 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.