I'm surprised nobody's mentioned this here yet:
http://www.kickstarter.com/projects/...-by-videogames
They ran a Kickstarter to start up their website earlier this year (I got all the music, and will add them to the site eventually) and now they're running this one to help fund a soundtrack album for Rokko Chan, a flash-based game. Depending on the amount pledged, you get more and more bonuses.
I'm a bit cheesed off that I have to pay $30 to get the Nobuo Uematsu album, but eh. :P
More info at the link above.