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.
cancercontrol.cancer.gov
Monograph from the National Cancer Institute. Epidemiology, clinical and pathological effects, carcinogenesis, nicotine effects and addiction, prevention, cessation, policy, and recommendations. All downloadable PDF files.