Well, I’m on Google+ now. First thoughts is that it looks like a cut-down version of Facebook. It is possible to group your friends and contacts into different circles and view the information streams diferently. Its also possible to control your flow of information to circles as you see fit.
Google+ allows the uploading of pictures and videos as well.
I’ll play with it some more before making judgement. I think it might prove useful in education and other collaborative working as well as social media. Anyhow, here is my page Jon Ivins – Google+ let me know what you think