The plugin I was using, FT Facepress II, decided to quit working, so now I’m trying to get the official Facebook WordPress plugin working.
If it does all it says it does, Facebook comments about blog posts will also show up here (and not just on Facebook), which would be nice.
Update: It appears to have worked, but it also appears to have replaced the comments engine. I’m not sure if that’s a good thing or a bad thing. That option is easy enough to disable; I’ll give it a trial period and see. The new engine can authenticate against Facebook, AOL, Yahoo and Hotmail, so it does give some options for those who don’t have Facebook accounts.
The upside is that this may significantly reduce the spam comments. I have a good anti-spam engine, but the comments still clutter up my database.