see what others can see from your attention #mdfp
If you want to understand what others see or are worried about what someone can glean then consider this great little addin for FF, IE and Chrome. Ghostery provides a window into the invisible web – tags, web bugs, pixels and beacons that are included on web pages in order to get an idea of your online behavior. Ghostery tracks the trackers and gives you a roll-call of the ad networks, behavioral data providers, web publishers, and other companies interested in your activity.