As a way of creating a viable and interesting revenue stream for YouTube, that has huge promise.
Separately, comScore says 180 million U.S. Internet users watched online video content in August 2011 for an average of 18 hours per viewer. The total U.S. Internet audience engaged in a record 6.9 billion viewing sessions. comScore reports YouTube traffic
Video music channels VEVO (60.6 million viewers) and Warner Music (30.9 million viewers) assumed the top two positions. Gaming channel Machinima ranked third with 17.7 million viewers, followed by Maker Studios with 10 million, Demand Media with 8.4 million and Revision3 with 6.6 million. Within the top 10 partners, TheGameStation demonstrated the highest engagement with 76.5 minutes per viewer on average. Machinima was a close second on average engagement at 72.6 minutes per viewer.