Which blogging communities do you all belong to? - And how well do you like them?

I just belong to cre8buzz and blogcatalog. I signed up for a couple of others like a few months ago...but don't check them. Ever. Actually, I mostly only check cre8buzz.

Just this one! I'm on a blogging break right now, but when I get back into it I may look to diversify... we should trade insight into which sites are worthwhile...