Earn at Metacafe
There is a cute project called Metacafe that offers producer rewards for uploaded videos. You must hold all the rigths to all the content, though. So if you use any music, it should be written by you and performed by you or your friend. The Metacafe recommends:
If your friend wrote, played and recorded the music, and she gave you the rights to use the music, profit from it and sub-license it to other media types, then you can use the music in your video. You should also thank her profusely and take her out to dinner anywhere she wants and offer to wash her dog.
That is funny, and they have a sense of humor.
For every 1000 views of your video you get 5 USD, and for your video to qualify for payment it should be viewed minimum 20,000 times and have a score of 3.0 + in customer ratings. Cool system as most prolific users have earned already 25-30 K USD.