Collusion: Do you know where you are?

The image and text above tells you just about everything you need to know. It’s from the Collusion project at http://collusion.toolness.org/ . It’s a Mozilla Firefox plug-in that allows you to visualise, either on the site or in a separate tab, a history of your web surfing for that session with lines showing which websites are sharing information about your movements with other websites ( the grey dots) or with dedicated trackers (the red dots). When you first visit the site it will demonstrate this using a pre-set series of…

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