Facebook is slow loading sometimes for me but it works fine....aside from those darn errors when you try to make a comment on someone's status or making a status message or when trying to do something on a application.
Any reason why a hacker would want to hack Twitter?
I remember that Yahoo was hacked years ago and also one of the other Search engine sites (was that Lycos that got hacked along with Yahoo?). Did we ever know why that person hacked yahoo and the other search engine site?