No, Cabspotting [1] is not a new website devoted to getting a cab to your door within seconds (but holler at me when you find that one). It's a little more ethereal than that: Based in San Francisco, from the Exploratorium [2], Cabspotting uses Cab Tracker [3] to follow and trace the path of 10 SF yellow cabs. The diagram looks like an otherworldly arterial system, rather than just a Google Map, and it's hauntingly beautiful, whether you happen to live here or not.

The Exploratorium has invited people to create art and projects [4] utilizing Cabspotting, so don't miss the work put up online — I love any Internet art galleries I can get my mouse on.