I've been afraid to do any advertising with G+ with as quick as Google is to delete accounts that violate their TOS (which even a false name can get an account deleted). I use G+ for my personal account, but I'm not confidant of using it for my porn blog account since I use it for all my associate accounts. Perhaps if Google's ban-hammer wasn't Google-wide I'd consider doing more.

Otherwise, I'm sticking to Twitter and Tumblr for getting word out about my blog and attempting to attract incoming users. Of course, I'm a low-traffic'd bottom feeder, so what do I know?