a flight delay website, the "Misery Mapper"

found on
http://flowingdata.com/2013/12/03/miserymap-of-current-flight-delays-and-cancelations/

FlightAware is a live flight tracker that lets you look up a flight to see where a plane is (and also provides a for-fee API). Their new MiseryMap http://flightaware.com/miserymap/ (below) focuses on delays and cancellations, a sore spot for all fliers and especially relevant given the holiday season and wintery weather. Donuts on the map represent on-time flights in green and delayed and canceled ones in red. They also show weather underneath, which is important context and a leading cause of misery.