Ghostery is a plug-in available for all major browsers that “gives you a roll-call of the ad networks, behavioral data providers, Web publishers, and other companies interested in your activity.” It allows you to block or allow the many legitimate and not-so-legitimate tracking scripts, img tags and iframes embedded into Web pages of all sorts that are quietly collecting information about your browsing habits, interests and demographic information. I’ve used Ghostery in the past but was pleasantly surprised to see recently that it’s been polished up significantly and made much more user-friendly. It also has a great name. Download it here.

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