
YouTube Surpasses 100 Million U.S. Viewers for the First Time
Americans’ Time Spent Viewing Jumps 15 Percent versus Previous Month
RESTON, VA, March 4, 2009  – comScore (NASDAQ: SCOR), a leader in measuring the digital world,  today released January 2009 data from the comScore Video Metrix service  showing that U.S. Internet users viewed 14.8 billion online videos  during the month, representing an increase of 4 percent versus December  2008.YouTube led the growth charge, accounting for 91 percent of the  incremental gain in the number of videos viewed versus December, as it  surpassed 100 million viewers for the first time.
Google Sites Adds to Lead in Video Market Share
In  January, Google Sites once again ranked as the top U.S. video property  with 6.4 billion videos viewed (43 percent online video market share),  with YouTube.com accounting for more than99 percent of all videos viewed  at the property. Fox Interactive Media ranked second with 552 million  videos (3.7 percent), followed by Yahoo! Sites with 374 million (2.5  percent) and Viacom Digital with 288 million (1.9 percent). Megavideo  climbed 15 percent (103 million videos) in January to capture a spot in  the top ten for the first time.
   | Top U.S. Online Video Properties* by Videos Viewed January 2009
 Total U.S. – Home/Work/University Locations
 Source: comScore Video Metrix
 | 
 | Property | Videos (000) | Share (%) of Videos | 
 | Total Internet | 14,831,607 | 100.0 | 
 | Google Sites | 6,367,638 | 42.9 | 
 | Fox Interactive Media | 551,991 | 3.7 | 
 | Yahoo! Sites | 374,161 | 2.5 | 
 | Viacom Digital | 287,615 | 1.9 | 
 | Microsoft Sites | 267,475 | 1.8 | 
 | HULU.COM | 250,473 | 1.7 | 
 | Turner Network | 195,983 | 1.3 | 
 | AOL LLC | 184,808 | 1.2 | 
 | Disney Online | 141,452 | 1.0 | 
 | MEGAVIDEO.COM | 102,857 | 0.7 | 
 
 *Rankings based on video content sites; excludes video server  networks. Online video includes both streaming and progressive download  video.
Google Sites Surpasses 100 Million Viewers in January
 More than 147 million U.S. Internet users watched an average of 101  videos per viewer in January. Google Sites grew to 102 million online  video viewers during the month, or more than two out of every three  Internet users who watched video. Fox Interactiveranked second with 62.1  million viewers, followed by Yahoo! Sites (41.9 million) and Microsoft  Sites (30.0 million).
   | Top U.S. Online Video Properties* by Unique Viewers January 2009
 Total U.S. – Home/Work/University Locations
 Source: comScore Video Metrix
 | 
 | Property | Unique Viewers (000) | Average Videos per Viewer | 
 | Total Internet | 147,322 | 100.7 | 
 | Google Sites | 101,870 | 62.5 | 
 | Fox Interactive Media | 62,109 | 8.9 | 
 | Yahoo! Sites | 41,859 | 8.9 | 
 | Microsoft Sites | 30,042 | 8.9 | 
 | AOL LLC | 27,198 | 6.8 | 
 | HULU.COM | 24,448 | 10.2 | 
 | CBS Corporation | 24,215 | 4.2 | 
 | Viacom Digital | 24,126 | 11.9 | 
 | Turner Network | 22,979 | 8.5 | 
 | Disney Online | 13,435 | 10.5 | 
 
 *Rankings based on video content sites; excludes video server  networks. Online video includes both streaming and progressive download  video.
Other notable findings from January 2009 include:
 - 76.8 percent of the total U.S. Internet audience viewed online video. 
- The average online video viewer watched 356 minutes of video (approximately 6 hours), up 15 percent versus December. 
- 100.9 million viewers watched 6.3 billion videos on YouTube.com (62.6 videos per viewer).
- 54.1 million viewers watched 473 million videos on MySpace.com (8.7 videos per viewer). 
- The duration of the average online video was 3.5 minutes, up from 3.2 minutes per video in December.
- The duration of the average online video viewed at Megavideo was  24.9 minutes, higher than any other video property in the top ten.