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.
Metal Detectors
Has schematic diagram for a one-coil induction metal detector. Excerpt from Metal Detectors for Treasures and Relic Hunting by Andrei Chtchedrine. Bilingual English/Russian site.