So, I just discovered noisetrade.com It only has a handful (literally) of albums but the idea is that you pay whatever you want for the album or send it to 3 friends and download the album for free. Found it when referred to it by one of the artists on her site/blog.
Any other sites based on this idea?
This one tip will help you sleep better tonight
A few seconds are all you need to get a better night's rest.