hey guys take a look at this found it just a min ago
http://www.quantcast.com/4peeps.com

I wonder how accurate that data is. How would they calculate how much money we all make, for example?

That is odd. I wonder where they get the data?

Stalkers?

This company gives a few answers below-not difficult to find out though counting-content analysis. Much is really generalizations and asumptions. Everybody is OK-not unlike the first time reading of an introductory psychology 101 text, and discovering everything that is wrong with you, and everyone else.
http://www.quantcast.com/faq.jsp#How_do_yo...ct_your_data.3F