YouTube Still Dominates Online Video Viewing

comScore’s May ratings show YouTube continuing to dominate in online video, and rapidly growing, at that. YouTube was not only the runaway winner as the leading publisher of online video, but it surpassed the 5 hour market in average time spent viewing online for the month, hitting 5 hours and 11 minutes. That’s more than the next 5 sites combined. The other key numbers for YouTube were 147 million unique users, watching a combined 2.2 billion viewing sessions. Here's a list of the leading sites in terms of unique users for the month:

1.      YouTube
2.      Vevo
3.      Yahoo
4.      Facebook
5.      Viacom
6.      Microsoft