wikipedia.org - List of operating Airlines
airlinequality.com - skytrax, airline reviews
seatguru.com - about seats and services
worldairroutes.com - airlines, countries
airlineandairportlinks.com links to airlines
thetravelinsider.info - airline reviews
landings.com - about airlines
kls2.com - airlines directory
airlines.ws - airlines directory
worldairlineawards.com - airline awards
airlinemeals.net - what airlines serve
airlinewatch.com - airlines and airports

soon more ...