So, I made a forum a while back, Open Canvas. It's mainly based on art (mostly digital, but any kinds are welcome, including photography), but there's still other discussions going on. We just started a SOTW for you sig artists out there. We're an old community, really, but our old site was shut down, so I made this one as a home for us. :
http://s15.invisionfree.com/Open_Canvas/
We're always looking for new members, so join up?