Airwise - - News and information source for airlines, airports and air travel. Also includes discussion boards.
Bel Air Travel - - Offers Canadian low-fare flight reservations.
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.
FlightArrivals.com - - Independent arrival, departure, delay and cancellation information for all commercial flights across the U.S. and Canada.
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.
Instone Air Services - - A specialist in the air transport of animals worldwide.
ITA Software - - Plan air travel with an advanced shopping tool displaying a summary of all flight travel options. Cannot purchase tickets online at this time. North America flights only.
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.