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.
Doctype-Switching: Wie Browser über die Darstellung von (X)HTML entscheiden
iX-Artikel "Pinselführung" von Michael Jendryschik über das Doctype Sniffing von Browsern (Qirks Mode, Standards Mode).