I haven't really gotten the hang of it yet, but I'm going to learn. I started a page for In Old Fort Dodge, my history blog from the early days of Fort Dodge, Iowa. I'll do one for this blog, and I'm also working some social networking for an author friend of mine, so I'll get her on there, as well.
I don't think Google + will be a Facebook killer, but it doesn't hurt to get coverage in more than one place. I can be found here, if anyone is interested.