Facebook has this feature for webmasters to use called Facebook Connect, or Facebook Login. It allows webmasters to integrate the system on their forum so that members can join using their facebook accounts. Which is a very quick way to join a forum. Alot of people use it to join forums because it is a quick way and dosent require any work. I myself use it if forums have it enabled. So since webmasters have members joining through facebook connect, what would happen if facebook connect suddenly stopped working, or facebook removed it? I doubt facebook would remove it, but it can stop working for example a reason would be server problems or downtime.. So if it was removed or it stopped working all the members that joined through facebook wouldnt be able login anymore. What would you do in this situation?