An interesting blog: The Darth Side: Memoirs of A Monster. Also, apparently Chewbacca is blogging from the other side's point of view. And Boba Fett has one as well, although his and Lord Vader's don't seem to match up in terms of timeline. Probably due to relativity or something.
"Whose trachea do you have to crush with your mind to get a little service around here?"