I've started using Google+, and I think it has great potential not just to rival Facebook, but to serve as a very viable outlet for professional learning networks. Anybody else using it? Or would anybody like an invite?
If you're already in and would like to add me to a circle, my profile is here. If you'd like an invite, send me an email at cbscofieldmath at gmail.com. (You need to have a gmail account to get into Google+)
Added you. I'm just trying to get lots of people on my google+ to see what it can do. So far all I notice is people getting more "friends" but not posting or doing anything with it. As I get more people I hope that changes.