Wordfire, The official site of Kevin J. Anderson and Rebecca Moesta. I love it when authors go out of their way to make a webpage to inform the fans. Join the fanclub and get a free signed page of KJA manuscript.
Fanfiction.net, This site is absolutely awesome when it comes to finding muchly desired fanfiction on any Star Wars character major or minor, I guarantee you, you'll be knocked off your feet by the sheer gross amount of stories (both good and crap).
The Exar Kun Information and Essay Site, I'm not a huge Exar fan, but the character's story is related to Kyp Durron's. I just recently stumbled upon this page, I admire the site because it's another that endevours to go indepth into the makeup of an interesting character from Star Wars fiction (or just 'fiction'), and pulls out some neat ideas and insights. Beyond that, the Tales Of The Jedi stories were superb!