I just found FlightAware this past week and was floored by the volume of data and sweet user interface.
I’ve worked with the FAA as both an enroute controller and automation software specialist for a couple of decades, and haven’t found a more useful tracking tool outside the agency. We have an internal use-only web-based tracking tool employed by our traffic management units across the country, and your tool is nearly as useful, with a more intuitive interface. During my first hour or so of exploring with it, I kept wondering ‘why is this free?’
Great, great work.