What is Google+?

There's been a lot of talk recently about Google's new social network, Google+. Seems like everywhere people are trying to make sense of it. 'Are you in?' is what they ask followed by 'Can you invite me?'. It's amazing what a little exclusivity and a lot of good execution can do for a product. Certainly reminds me of an older website that people used to be head-over-heels with: Facebook. »