AirlinesAndAirportLinks.com
   Database of links to airlines and airports around the world.
   http://www.airlineandairportlinks.com/

Airwise
   News and information source for airlines, airports and air travel. Also includes discussion boards.
   http://www.airwise.com/

Bel Air Travel
   Offers Canadian low-fare flight reservations.
   http://www.belairtravel.ca

FlightArrivals.com
   Comprehensive, independent arrival, departure, delay and cancellation information for all commercial flights across the US and Canada.
   http://www.flightarrivals.com

HowStuffWorks: How Airport Security Works
   Illustrated tour of the current technology used in airport security.
   http://www.howstuffworks.com/airport-security.htm

IAPA - International Airline Passengers Association
   Offers hotel discounts, car rental savings, flight reservations, travel insurance, airport VIP lounge access, airline safety representation and luggage protection.
   http://www.iapa.com

ITA Software
   Plan air travel with an advanced shopping tool displaying a comprehensive summary of all your flight travel options. Cannot purchase tickets online at this time. North America flights only.
   http://www.itasoftware.com/

Instone Air Services
   A specialist in the air transport of animals worldwide.
   http://www.instoneusa.com

OAG - The Official Airline Guide
   Independent provider of travel information products and services, offering business travelers, corporations and the global travel industry information to make effective travel planning decisions.
   http://www.oag.com/

The Budget Traveller's Guide to Sleeping in Airports
   Reviews including the best and worst around the world. Tips for sleeping comfortably and safely while grounded, articles, news and other strange places to sleep.
   http://www.sleepinginairports.net/