How to tell who's tracking you online

Wrote Michael Moyer, "[In February of this year] Mozilla introduced Collusion, an add-on for the Firefox browser that shows you how companies are tracking you as you surf the web. A cool visual demonstration of the software illustrates all the links that form as you crisscross just a few popular sites online, including IMDB, the New York Times and the Huffington Post. The software shows the connections between sites you visit and third-party tracking and advertising networks such as Doubleclick and Scorecard Research. It makes plain the invisible web that has been woven through the Web."

[via Scientific American]