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.
borromean ring
In mathematics, the Borromean rings consist of three topological circles which are linke and form a Brunnian link, i.e., removing any ring results in two unlinked rings.