hello,

Jon Orwant gave a great presentation on Google Books, partly a
reprise of Dan Clancy's at the last DLF Forum, at the O'Reilly Tools
of Change for Publishing conference.  PDF slides are here:

http://assets.en.oreilly.com/1/event/19/Google%20Book%20Search_%20Past,%20Pr
esent,%20and%20Future%20Paper.pdf