Muxtape — Online Mix Tapes!
I came across this a couple of weeks ago and have been meaning to post: Muxtape is an online service that lets you create playlists of mp3 files. Sadly, it looks as if you can only post one playlist per account. But, I’ve found that it’s a great way to browse for new music.
You might want to check out mixwit too, if you like muxtape. No uploads and you can post the mix tape on your blog.