According to Nielsen, YouTube led all online video destinations in the U.S. in December when it came to the number of unique viewers it drew and the number of total streams. However, Netflix engaged its viewers for the longest average time.
There were 164.3 million unique online video viewers in the U.S. in December. These viewers streamed more than 22.6 billion videos, which is the equivalent to 137.7 streams per viewer. Each viewer also spent an average of 5:04 (hh:mm) watching online video during the month.
YouTube led all online video destinations with 131.4 million unique viewers in December, according to Nielsen.
It was followed by VEVO with 39.7 million viewers, Yahoo! with 36.7 million viewers, Facebook with 23.5 million viewers, MSN/Windows Live/Bing with 23.0 million viewers, AOL Media Network with 20.6 million viewers, The CollegeHumor Network with 19.3 million viewers, Hulu with 19.3 million viewers, ESPN Digital Network with 16.7 million viewers and Perform Group with 10.9 million viewers.
YouTube also led all online video destinations with 13.8 billion streams in December in the U.S., according to Nielsen. Hulu followed with 756.9 million streams, while VEVO had 435.4 million streams during the month.
AOL Media Network followed with 358.8 million streams, while Yahoo! had 338.7 million streams, Netflix had 251.8 million streams, ESPN Digital Network had 233.1 million streams, Comcast Digital Entertainment Websites had 216.5 million streams, MSN/Windows Live/Bing had 205.3 million streams and Disney Online had 167.9 million streams.
However, when it came to time per viewer, Netflix blew everyone else out of the water with 10:07 (hh:mm) per viewer during December, followed by Hulu with 3:08, YouTube with 3:02, Justin.TV with 2:28, Megavideo with 2:10, Youku with 1:42, CWTV.com with 1:32, CBS Entertainment Websites with 1:05, Nickelodeon Family & Parents with 1:04 and ABC Television with 1:03.
A separate set of numbers from Encoding.com found that Android smartphones accounted for 24.0 percent of videos viewed on Vid.ly from mobile devices in the fourth quarter of 2011, while iOS accounted for 40.6 percent and other mobile devices accounted for 35.4 percent.
In the first quarter of 2011, the splits were 10.2 percent, 80.9 percent and 8.9 percent, respectively.
Sources:
http://blog.nielsen.com/nielsenwire/online_mobile/december-2011-top-u-s-online-video-destinations/
http://www.encoding.com/company/press_release/vid.ly_universal_video_platform_reveals_android_gaining_on_ios_in_mobile_vi
Digg 
