I just was able to invite 2 family members, 2 friends, and several people who posted on my blog asking me how to get invites. I am out of invites now. I invited people who I thought would really use it.

I must say that Google+ is very well done. I enjoy it every day.

BTW, a little off topic, but I have blasted Google on several occasions about dropping Google Wave. Turns out I complained for nothing: the latest Wave In A Box (WIAB) code drop is open source, builds easily, real time sync between users works very well, and the web UI is similar to the original but simpler (in a good way). Thanks to the people who did the nice Apache incubator distro!!