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.
enigma
An enigma is a puzzle, something mysterious or inexplicable, or a ridle or difficult problem.
Trivia about enigma
German military communications of WWII were a riddle wrapped in a mystery inside this coding machine
Cryptically named cryptogram machine used by the Nazis