If you plan to travel over the holidays, make sure you take note of 1(877)FLYERS6, a free hotline for flyers set up by the Coalition for an Airline Passengers’ Bill of Rights.  From Consumerist.com:

They offer a variety of services, like emailing your family or business associates and let them know where you are, offering real-time weather and flight status information, and let you know about hotel or rental options, as well as help you deal with refund situations. If you’re stuck on the tarmac and not being let off the plane, they will pass the info on and try to get media out to the airport.

Seen via Consumerist