A while ago, I discovered FlightAware. It’s a site that does some very comprehensive flight tracking — and not just of commercial flights. Punch in an airline and flight number, and you see a whole ton of data. You see a map of the flight’s route, estimated/actual arrival/departure times, equipment type, cruising altitude, and speed. You can see how the flight progressed, as far as altitude and speed. You can see the history of the flight for the past few months (actually, back to June 2005). But that’s not all! You can check flights between two cities. You can check arrivals & departures (and upcoming arrivals & departures) at a given airport. Every now and then, I’ll pull up the page for a big airport (like JFK) and listen to one of the internet streams of the air traffic control. The site gives you a bit of a visual to go with the audio. In the case of JFK, there’s usually a nice handful of JetBlue and other flights that are severely delayed. Once in a while, the site has come in handy for info at work, too. Good stuff.