There have been sites to track flights for a while. Now there’s a new one, and it definitely advances the state-of-the-art on free tracking sites.
FlightAware slices and dices all available information from every IFR flight across the US. That means it includes both commercial and general aviation flights.
The site also connects with other databases to flesh out whose plane is whose when you’re looking the tracking data.
I’ll be back, if only to kill time.