Over three-fourths (77%) of the US internet audience viewed online video in November 2008, driving the total of online videos viewed by US internet users to 12.7 billion.

That’s a 34% increase over the same period in 2007, according to data released by comScore’s Video Metrix service.

The average online video viewer watched 273 minutes of video.

97 million viewers watched 5.1 billion videos on YouTube.com (52.3 videos per viewer).

52.5 million viewers watched 371 million videos on MySpace.com (7.1 videos per viewer).

The duration of the average online video was 3.1 minutes.

The duration of the average online video viewed at Hulu was 11.9 minutes, higher than any other video property in the top ten.