Comscore Releases September 2014 U.S. Desktop Online Video Rankings

RESTON, VA, October 22, 2014 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the Comscore Video Metrix® service showing that 192.2 million Americans watched online content videos via desktop computer in September 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 September with 150 million unique viewers. Facebook ranked #2 with 98.1 million viewers, followed by AOL, Inc. with 71.5 million, Yahoo Sites with 59.2 million and Vidible.tv with 57.1 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 Unique Viewer Percent Reach
BrightRoll Platform ranked #1 in video ad reach, serving ads to 52.4 percent of the total U.S. population in September. LiveRail came in second with 52 percent reach, followed by SpotXchange Video Advertising Platform with 47.3 percent, Specific Media with 44.6 percent and AOL, Inc. with 44 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 September 2014 YouTube partner data revealed that video music channel VEVO climbed back into the top position in the ranking with 41.6 million viewers. Disney/Maker Studios occupied the #2 spot with 40.7 million unique viewers, followed by Fullscreen with 36.5 million, Warner Music with 23.4 million and Machinima with 20.4 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.