It's very little I'm afraid, and my full year list is missing, oh dear.
Life, the Universe and Everything by Douglas Adams
So Long, and Thanks for All the Fish by Douglas Adams
Young Zaphod Plays it Safe by Douglas Adams (short story)
Mostly Harmless by Douglas Adams
I'm almost done with Specials by Scott Westerfeld, and I started Evolution's Darling, also by Westerfeld. I must say I found it slightly disturbing and left it be for November so I could write my novel.