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.
The Science and Technology of Traditional and Modern Roofing Systems
Dr. Heshmat O. Laaly's two volume book set (also e-book and CD-ROM) on roofing from basic materials to the finished roof.