Hey all, sorry to res this thread.
Though I don't have a book or fiction for 2300 AD, I recently ran a game and posted the rpg journal on my MySpace blog. If anyone wants to see it, it is here:
http://blog.myspace.com/max_writer
The date on it is June 16, 2010 - but you'll have to go back a little ways to read it.
An older one (Jan. 7, 2008) is still here as well - that's from the Traveller 2300 game.