I've been looking for a few years for such a community. Strangely, most of the comic/cartoon art forums I found seemed to have died down in 2006... :( I do love this site, but I also find that cartoons sorta take a back seat to 'Heavy Metal' style art. I figure I'd better draw more burly Vikings in order to network a bit and get to know other artists, which is what I was hoping for when joining.
I wish there was a site like this for cartoon and comic artists. Maybe there is but I haven't found it yet... my Utopian Comic Illustrators Art site where people appreciate black outlines and non-realistic coloring and there is no Anime or Manga allowed. (Hey I can dream can't I? *grumble*)