GPL for Books (Score 0)

I, too, have thought for some time about some sort of GPL for published material. Our company does technical communications materials, mostly proprietary. But I've wondered about writing books that would carry a GPL-type license, and distributing them on the Web. All books contain inaccuracies and quirks. A true GPL-style feedback would produce constantly improving material. That's not important to everybody, but it is to many.