Hmm, all this talk about finding and bringing back out-of-print books sounds like a fine solution to the "orphan works problem" that doesn't involve giving in to Google's land-grab. Instead, dozens or hundreds of small businesses can hunt down the copyright owners and *pay* them to bring their "orphaned" works back to market.
Readers get the content, creators get paid, Google loses its excuse to take over other people's work.
Works for me.