I had the Joost player once but it was awkward and did not use it much. Recently I read that it now has an interface a la Youtube but I never checked it out. About half an hour ago I read on the Guardian that Joost has added 12.000 indie videos and that was enough motivation to go and see.
It has changed a lot and it looks ago, can spend some time there, can even login through Facebook.
The only problem is that I cannot find the way to embed videos here.