Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
www.pragprog.com
By Dave Thomas, David Heinemeier Hansson, Leon Breedt, Mike Clark, James Duncan Davidson, Justin Gehtland, Andreas Schwarz; The Pragmatic Bookshelf, 2006, ISBN 9780977616633. First definitive guide to developing with Rails; Jolt-award winner.