Everybody should go and check out actor Joseph Gordon-Levitt’s (Brick, 500 Days of Summer) organization at http://www.hitrecord.org
What is it? Basically, by becoming a member you can upload a piece of media (writing, video, audio, whatever as long as it’s 100% yours) and any other member can download what you post and edit it, build onto it, or mash it up with another piece and re-upload it back onto the website. Of course, this means you can also take anything uploaded onto the website and do the same. The website is all very share-alike.
The most interesting thing about it is that it houses an amazing, collaborative community that actually does create some new, cool stuff together. I recommend everybody in our class sign up for an account; my username is mattpietro527. Be warned, it becomes an addiction.