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.
A Guide to Creating Your First Ontology
Introductory paper by Natalya F. Noy and Deborah L. McGuinness, from Stanford University. Provides guidelines and examples using Protégé-2000.