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.igsb.uiowa.edu
Website of the Geological Survey Bureau of the Iowa Department of Natural Resources, including a Geologic Sample Database (GEOSAM)with geologic information for 35,000 locations in Iowa.