Most of these people don't know there contributors yet, but they helped form the wikibook.
Emma Persky for coming up with the idea of writing a book about BarCamp. Emma's thought were a lot more involved that the simple one liners of this wikibook and of course would be from her point of view. I still hope she writes BarCamp: The book and even draws upon material gathered here, if the licence works for both parties.
The Twitter Book, by Tim O'Reilly and Sarah Milstein. This book is what I'm aiming for with the wikibook, short sharp advice, take it or leave it. discussions and complex issues not deeply explored.
Cristiano Betta and Mel Seckington for being a bouncing board to this crazy idea