I'm not sure if Twitter counts as a blog per se, but I'll assume you do count it as such. My regular blog and my Twitter have the same username, and I've linked both on each site. So, in my case, I don't make a differentiation between the two. I do hope that people I interact with IRL never find them, at least for the time being.
I don't ever post my real name or my exact location. The most specific I've gotten was "East Coast," and I don't plan on changing that anytime soon.