This mapping site is a service of the "National Association of Radio-Distress Signalling and Info Communications" (which is based in Hungary) and was passed onto us by Bruce Jones.
Click on any of the icons -- you will get more information than you may have wanted!
It is picking up data feeds from the FAA, the USGS, weather service, etc. and plotting on an USA map. Kinda of creepy -- but still an amazing application