Scot Bourne wrote a post about the problems of using Google+ as photographers. Many have followed with differeing opinions. Roland Gomez on Lens Diaries writes a post to break down the TOS for Facebook and Google+ as a non-lawyer. Word a read.
--- [My $0.02. Nakeva] ---
"...But there are problems, especially for photographers, on these social media sites—photo rights! Yes, it’s funny how the social media that relies on “user uploaded photos” doesn’t truly understand how their rules impact photographers. So let’s look at my favorite of all social media providers, Facebook. I think they are currently the best at assuring photographers of their rights and others could learn from them. Facebook’s “Statement of Rights and Responsibility” is designed to protect them, rightfully so, but it protects photographers indirectly too..." - Lens Diaries