Visualizing Tracker-Cookies in your Browser

Collusion ist ein schönes Plugin für Firefox, das die Datensammlungen von Websites während des Surfens in Echtzeit visualisiert:

Collusion is an experimental add-on for Firefox that allows you to see which sites are using third-party cookies to track your movements across the Web. It shows, in real time, how that data creates a spider-web of interaction between companies and other trackers.

Collusion (via Rebelart)