If you are a photography person, I highly suggest that you check out DigitalRev: www.digitalrev.com/
I've been a fan of their crazy photography product reviews on youtube (www.youtube.com/user/DigitalRe…
for a while, cause they are teh lulz. Recently they launched a beta social-network thing, that's kind of like a Facebook-flickr hybrid. It's a relatively small community right now and there are lots of great photographers on it. And since it's such a small community it's easier for more people to see/get more feedback on your work than on the craziness that is DA.
Anyways I just thought I'd share, I'm going to sleep now =_=