I’ve been toying with Google Groups a little and I keep waiting for “the catch” but still haven’t found it.
Totally free, make as many “groups” as you like, 100mb storage space, user restrictions (who can up/download, read, post, etc.)
What’s the downside here? (…actually I don’t yet know if you can link to individual files in your group so that it would be a good way to host songs)
Seems like an ideal solution for collaborating over the web.
Check it out: