Today i've got a chance to see RooftopComedy.com . RooftopComedy.com is broadcasting the best comedy from around the USA, and soon the world. It’s an opportunity for comics authors/actors to build their followings, establish a professionally produced video archive of their favorite sets, and win money along the way. Users can view rate comics/clips/shows. Currenty using windows media interface for displaying the clips. But sometimes i personally prefer Flash Video Format cause it's more expandable. You can list all the clips by their ratings or other criteria. For a limited time only they are offering backstage pass signup for free . You can also signup for Front Row Pass which is always free. Screenshots below:

http://www.rooftopcomedy.com/