Hi.
You might find it quite difficult to find this sort of work online when you don't know anyone, and nobody knows what genre, quality, or format of music you can produce. Professional musicians find it hard enough to find this sort of work these days!
When I was at Uni I was tasked with some web design and found some media students at the same Uni who were tasked with producing a short film and promoting it on the internet (long before broadband connections and sites like youtube). They teamed up with one of the music students to produce music for their film and I worked with them on the web promotion, therefore resolving all our project requirements.
I think that would be your best bet, to put a notice up at Uni explaining that you'd like to work with some media students tasked with producing or directing something and you can do the incidental music for them? Not only do you get your project done, but you'll have a new group of mates to chill out with over a beer at Uni! You can never have too many of those!
Alternatively, you can find someone who posts videos online and get their permission to add your own music to it and publish it on youtube. Preston Becker allows this:
http://www.youtube.com/user/PrestonBeckerDon't forget licensing:
http://creativecommons.org/licenses/by-nc-nd/3.0/Best of luck!
Jon
