279 has been revised to include Twitter and to note the changes to the Facebook Connect functionality.
314 has been added, discussing how to change a Facebook or OpenID account into a full LJ account. There are no variables in this FAQ, so if you feel like tossing some in, go ahead.
293 was unhidden, but I couldn't remember where it lived before, so it's in Comments until someone moves it to where it belongs.
283 still needs to be updated to reflect Facebook accounts, but I found that there are some differences between facebook and openid accounts, so that will probably be updated tomorrow when I am feeling a bit better.
Questions, comments, concerns? What'd I miss?