Google+

It's damn great, and it's absolutely awesome: the new "social thingy" made by Google. It's called Google+ and it even looks quite nicer than Facebook :P
You can manage your "friends" (they don't have to confirm, that you follow them) are manged in Circles.

At the Moment, the project is in a private beta phase, and only people invited by Googlers have access. I'm very glad that I am one of them, to test Google+.

I played a bit around and my opinion is, that this could be a powerful tool - and Facebook should become frightened.

Before you start asking: No, no invites. They are actually disabled :)