Predicts the demographics of your site

This site is from Microsoft labs and claims to predict the demographic of a particular site or a particular search term. In plain English it will tell you if the visitors to your site are male or female. You can also look for a certain search terms too. And see who are searching for those words. Interesting idea but don't know how accurate it is. But after looking at the search term love I am convinced it true. Predicts demographics from Microsoft lab