Google Circles was supposed to do this, but it turned out that the entire product was a misunderstanding. A better way to maintain private circles is through c

Google Circles was supposed to do this, but it turned out that the entire product was a misunderstanding. A better way to maintain private circles is through closed Facebook groups. If you want to go one step farther and talk freely/anonymously among friends and colleagues, see my comment below. I am working on a startup that does just that.