Friendster offer a list of sites to host mp3s and suggest you link to them - I'd heard of putfile.com before, but I can't believe their terms & conditions:

By uploading an image, video or other file to Putfile.com, users give permission for the owners of Putfile to publish any such files through any associated media channel or party. Users upload files to Putfile on condition that they release all rights to the image, and give full permission to Putfile and its associates to use and publish the image in any way they wish. No compensation will be payable for the uploaded file being used in any such way.

isnt this a bit ..erm.. cheeky?

I worry about the explosion of unregulated internet copyright useage.
There is so much potential for abuse and robbery.
This is where the industry bodies should be concentrating - protection without supression.