Know someone who is in-flight?

AirNav Live Flight Tracker has all the features one needs to track in a fast and easy way, any flight or airport movement, live on one's computer.

This software is pretty amazing if you want to keep track of someone's flight:

AirNav Systems

There is even a AirNav ACARS Decoder that will allow the user to receive real aviation cockpit-to-ground messages on their computer. All that is needed is an Internet connection.