Was going to wait till I'd done more but what the hell.
Following the "recommend me good free music on bandcamp" thread, I decided to knock together a site that gets results from last.fm recommended artists and finds if their on bandcamp. You can find it at http://lastband.in.
It works for lastfm usernames too and has a "view similar artists" for each result, so you can keep going and going and going in a bandcamp spiral.
Intend on adding emusic, spotify and song kick support in the coming weeks too.
Let me know feedback and I'll try and incorporate it.
Ps. Unfortunately the band camp api doesn't tell you if it's a pay what you want, so it could be free but still labelled paid.
Pps sorry it looks so shit. Website styling isn't my strongpoint
Pps @lastbandin on twitter for updates