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Page last updated at 07:43 GMT, Wednesday, 9 May 2012 08:43 UK

Does web privacy have a price?


Everyone who goes online leaves footprints all over the internet, whether that is where they have been or what they are up to. This is all gathered and recorded by special software.

Ian Hardy reports on whether stopping websites from using tracking software could have serious consequences on the users themselves.

Follow the Click team on Twitter @BBCClick. And join the conversation on Google+ or Facebook.


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