MuxFind.com, for searching Muxtapes, and thereby pretty much recreating Napster in a browser. (It says that the service is not associated with Muxtape. If that's true, Muxtape might wanna shut it down before everyone gets sued outta existence.) Update#1:
Fred likes it. Update: #2:
Anthony thinks it should be open-source.
http://muxseek.ah-huh.net/
hopefully they will find a way to keep you from downloading the mp3's because muxfind could help muxtape in a legitimate way. You could do a search and find muxtapes with joy division songs and then listen to the rest of that person's muxtape and maybe find something new.
Curses! I came here just to tell you about Muxfind in the comment section of some marginally related post and here you are linking to it. Jerk!
and now it's dead....