Hitwise reports that YouTube and Google video combined grab over 77 percent of US video visits. In March, YouTube snagged 73.18 percent of US visits, a 32 percent increase over March 2007. Despite decreasing by 52 percent, Google Video maintained third place at 4.06 percent, compared to 8.42 percent last year.

MySpaceTV, Yahoo Video, Break.com, MetaCafe and DailyMotion all bled a few visitors over the past year in a market that declined by seven percent in general. MySpaceTV fell 48 percent from March of last year to grab just 9.21 percent of the online video audience.

Yahoo Video and Break.com are virtually neck and neck in the race, jockeying for 2.16 percent and 1.82 percent respectively. The rest of the top ten are lucky to grab one percent, with Blinkx rounding out the bottom with 0.58 percent.

Though YouTube and Google prove their dominance, the numbers show both how fragile the online video market is and how wide open it is to newcomers. NBC and Fox's joint venture, Hulu, appeared on the list at number 22, just exiting beta on March 15. In two weeks, Hulu grabbed 0.22 percent of the market.

"As online video becomes more mainstream with internet users, the share of referred traffic from the younger audiences of social networks is declining, shifting instead toward search," said Heather Dougherty, Hitwise's director of research.