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.
needle in a haystack
A neele in a haystack is an English idiom that refers to an object (or a person) that is difficult to find because it is lost, mixed in, or buried within a much larger space, mass, crowd, or group of some other objects.