FlightStats– FlightStats.com - provides everything you need to know about air travel and then some.  Aside from travel deals and promotions, FlightStats has airport status about; delays, parking, flight alerts and security wait times.  The interactive Flight Tracker option lets you track a flight over North America in real-time, on a map.  Check the status of a flight, reserve parking at your departure airport, check weather at your destination, share flight experiences in the airport forum or rate the airports you have visited.  FlighStats is chocked full of helpful tips, some of which you didn't even know you need...but do.  You will wonder how you ever got on an airplane without them.