Six Degrees of Wikipedia

Ever wonder how many clicks it takes to get from the Wikipedia page for
Bill Gates to the page for Mark Shuttleworth? The answer is three. How
about from "ice cream" to "cone?" Surprisingly, the answer is four. We
know this this because of Six Degrees of Wikipedia page.
Just type in any two items, and the web service will dig through a
database of Wikipedia articles and figure out how long it would take to
get from one to the other. [via Digital Inspiration]