Facebook's "Circles" are called "Lists", and UX aside, I think Facebook's Lists are a lot better than Google+'s Circles. I actually got a chance to talk with so

Facebook's "Circles" are called "Lists", and UX aside, I think Facebook's Lists are a lot better than Google+'s Circles. I actually got a chance to talk with some Google+ folks at an event while the beta was still going on, and asked why I couldn't say "share this post with all the people in my 'friends' Circle but not with anyone in my 'coworkers' Circle", which is something Facebook's lists allow you to do quite easily. Their response was that this wasn't a feature they wanted to add because it didn't serve most people's use cases.