A few art sites and communities I've run into:

It's been a while since I've published a lisy of new Art sites, communities, and magazines: so here goes:

www.virb.com - Virb is a community website that combines social interaction with music and entertainment exploration.

http://www.saatchi-gallery.co.uk - The Saatchi Gallery has always aimed to provide an innovative forum for contemporary art, presenting work by largely unseen young artists or by established international artists whose work has been rarely or never exhibited in the UK.

http://www.deviantart.com/ - Join the largest art community in the world! As a member, you can collect favourites, submit art, and track your friends and favourite artists (thanks Gil...).