I've mentioned this link many, many times in my blog and elsewhere, and I can't say enough good about it.  It's a twice-weekly newsletter I receive, and it's all about art, creating art, viewing art, discussing art, sometimes discussing life.  Participants can upload their own artwork, make comments on their own or on another's artwork, discuss every aspect of creating art.  If you're at all interested in learning about how painters think, what individual artist's work looks like, how to be creative, how to organize your self-employed workday, etc., I highly recommend you start reading these posts.