Another good use for wikis to promote pre-publication collaboration. Seems like the folks that contribute to the google wiki "Fun with Google Maps" will add their hot tips, fun ways to use the product and appear as authors in this chapter of an upcoming book. https://blog.outer-court.com/archive/2006-01-30-n59.html
How we toil to contribute and share ..... expecting little in return. : ) At least in library school the oft spoken question was "But you didn't become a librarian to get rich, did you?"
So people don't want to share what they know? Replace that rumor with a new alliteration ... Why Wikis Will Work!