U.S. Internet users watched 12.7 billion online videos during the month of November, representing an increase of 34 percent over a year ago, according to comScore Video Metrix.

Google sites were again the top U.S. video property with nearly 5.1 billion videos viewed (representing a 40 percent share of all videos viewed), with YouTube accounting for more than 98 percent of all videos viewed at the property. 

Fox Interactive Media took the second spot with 439 million videos (3.5%), followed by Viacom Digital with 325 million (2.6%) and Yahoo sites with 304 million (2.4%).

Microsoft sites trailed Yahoo with 296 million videos (2.3%) while after a surge in viewership in October, Hulu retained its #6 position with 227 million videos viewed (1.8%).

More than 146 million Internet users watched an average of 87 videos per viewer in November. Google sites attracted 98 million online video viewers, about tow out of every three Internet users who watched video during the month. Fox Interactive ranked second with 58.1 million viewers, followed by Yahoo sites (40 million) and Microsoft sites (35 million).

Viacom Digital attracted 27 million online video viewers and Hulu had 22 million.

Ninety-seven million viewers watched 5.1 billion videos on YouTube (52.3 videos per viewer) and 52.5 million watched 371 million videos on MySpace (7.1 videos per viewer).