I always like Plexi Palace
www.plexipalace.com But I was just checking it and they seemed to have started a bass forum as well. Here's a sample of what guitarists think about bass - not very nice (I'm sure they're just kidding).
"It's like a guitar, 'cept it's a lot easier to play, on account of it only has four strings 'n' they're real big like"
AND
"Did you hear about the bass player who locked his keys in the van?
Took him an hour to get the drummer out."
These guys are good though.
