I just read that Google is disabling Google Friend Connect for all non-Blogger based sights as of March 1, 2012. That’s me… Boo.
It seems they are trying to push Google+ and have non-blogger users make use of “Hangouts” and “Circles” to keep in touch with their readers. I have a Google+ account, but haven’t really used it much… we’ll see if I end up going for it.