How Big Is Youtube in Online Videos Market?

Youtube which contributes to 99% of all online videos served by Google along with Google Video has now crossed the 10 billion videos watched per month mark. For a perspective, here are the top 5 companies in the online videos market and their market share

1. Google sites : 39.6%
2. Microsoft sites : 2.2%
3. Viacom Digital : 2.1%
4. Hulu : 1.9%
5. Fox Interactive : 1.5%

Youtube enjoyed 121.4 million unique visitors in August and an average of 82.8 videos viewed per viewer.