Wired, December 11, 2009 by Priya Ganapati
http://www.wired.com/gadgetlab/2009/12/diy-book-scanner/
If you scan a book that you have already purchased, it is “fine, and fair use,” she says. “Personal-use copying should be deemed to be fair, unless there is a demonstrable showing of harm to the market for the copyright at work,” says Samuelson.