1. Does Google have a "broadcast mode"? Because I think it's vital. The problem with Facebook is that it only had a broadcast mode and not a "circles" mode. But

1. Does Google have a "broadcast mode"? Because I think it's vital. The problem with Facebook is that it only had a broadcast mode and not a "circles" mode. But does Google+ have only the Circles mode and not a broadcast one as well? All social networks need a broadcast mode (AND a circles mode). 2. Does it have a real time communication tool, such as Gtalk, or maybe another chat program that works across the entire network like Facebook chat. I think IM features are important for a social network, too. If it does, how does it work? Does a different chat appear in each Circle? Or do I see all at once? I'm not sure I'd like to see all at once. It's acceptable in the beginning, but what if you have 10 groups of ~20 people each? I think I'd prefer to just go into each Circle when I want to talk to that group, rather than see them all at once, and having them all see me when I'm online.