This site is run by a buddy of mine (I'm also a mod) so i decided to post it here in hopes some of you find it interesting.
Current list of artists we have communities for:

Black Country, New Road
black midi
Buckethead
Cindy Lee
Elliott Smith
Fishmans
Geese
Geordie Greep
Godspeed You! Black Emperor
IDLES
Maruja
Panchiko
Portishead
Royal Trux
Shearling
Silver Mt. Zion
Slint
The Smile
Squid
Stratford Rise
Talking Heads
Tongue Depressor
YHWH Nailgun

Currently, the next planned artists to get a community is Radiohead, although eventually users of the site will be able to create their own communities.