Travel
General
World Travel and Tourism Council
Aviation
Forecast International Market research on aerospace, defense and power systems.
Janes Information on defense, security, transport, public safety and law enforcement.
Aerospace & Defense Industries Association of Europe
USA Federal Aviation Administration The Administrator's Fact Book is useful.
GAMA General Aviation Manufacturers Association.
International Air Transport Association
Eurocontrol European Organisation for the Safety of Air Navigation
European Regions Airline Assocation Statistics page
Bombadier This is their commercial airport market forecast 2007 - 2026.
The Airline Monitor They have an overview of the history of the industry.
International Civil Aviation Organistion
Regional Airline Association USA.
Advisory Council for Aeronautics Research in Europe
Commission for Aviation Regulation Ireland
Airports Council International
European Business Aviation Association
American Institute of Aeronautics & Astronautics