Great book about the history and algorithm of Google. Many funny never-before-seen anecdotes. Read about how the froogle team's algorithm was perfect except for returning "Garden gnome in running shoes" on eBay for the search "Running shoes." Their solution? An engineer bought and prominently displayed the gnome, rather than add an edge case.
very good book on the origins of and rise to power of Google. It has some good insight into the internal struggle at Google over their "Don't Be Evil" mantra and their weakness at chasing taillights/competing with Facebook.