The Chronicle links to a copy of the book-digitization project contract inked between Google and the University of California — The UC has pledged to provide Google with at least 2.5 million books for the massive digitization initiative:

"Daniel Greenstein, director of the California Digital Library, said Google had committed early on to a core value for the university: public access to the public-domain materials at no cost. They said, "As long as we are alive as a company, or successors are alive using this file, we will make it available for free," he said. "I’ve never seen this from anybody. That was their opening gambit."  [SCOTT CARLSON, "U. of California Will Provide Up to 3,000 Books a Day to Google for Scanning, Contract States,"  The Chronicle [Friday, August 25, 2006] [Chronicle access password protected].