If someone screams "they're watching you!" into your face, then you're either starring in a horror movie or living in these surveillance-conscious times. Still, if it's the latter, at least now you can put a name to the faceless entities observing your every move. Mozilla has released Lightbeam, a Firefox plugin that visualizes which sites are tracking your browsing history and how those sites are connected. Based on the experimental Collusion add-on, the software will even show you which third-party tools and personalization trackers are watching you from afar. All you need to do to get learning is download the feature from the source -- just remember to pull your best Enemy of the State face when you see the tangled web that just a few minutes of browsing will weave.