WebProNews

In December 2007 U.S. Internet users viewed more than 10 billion videos online and it was the busiest month for online video consumption since comScore, which authored the report, began tracking online video.

"December represented a considerably strong month for online video viewing," said Erin Hunter, comScore executive vice president of media and entertainment. "With the writer's strike keeping new TV episodes from reaching the airwaves, viewers have been seeking alternatives for fresh content. It appears that online video is stepping in to help fill that void."

Google Sites led again as the most watched U.S. video property in December with 3.3 billion videos viewed, grabbing 32.6 percent of the market share and gaining 1.3 percent share points over the previous month. YouTube accounted for over 97 percent of all videos viewed at the property. Fox Interactive Media followed with 358 million (3.5 %), trailed by Yahoo Sites with 340 million (3.4%) and Viacom Digital with 238 million (2.3%).

Overall, almost 141 million Americans viewed online video in December. Google Sites also had the largest online video audience with 79 million unique viewers, followed by Fox Interactive Media with 43.9 million and Yahoo Sites with 38.2 million.

 comScore said that 77.6 million viewers watched 3.2 billion videos on YouTube (41.6 videos per viewer), and 40.5 million viewers watched 334 million videos on MySpace (8.2 videos per viewer).

Online viewers watched an average of 3.4 hours (203 minutes) of online video during December, 34 percent increase since the start of 2007. The average time spent watching a video was 2.8 minutes and the average online vide viewer watched 72 videos.