Government & Official

• Air Accidents Investigation Branch UK 
• CAA - Civil Aviation Authority
• Canadian Forces AIr Navigation School
• Civil Aviation Safety Authority
• The Corporation of London
• FAA - Federal Aviation Administration
• International Air Transport Association
• International Civil Aviation Organization (ICAO)
• International Federation of Airworthiness 
• Royal Air Force
• UK Regional Directory

Organisations

• Air League
• Airship Association
• BALPA-British Airline Pilots Association
• British Association Of Balloon Operators
• British Gliding Association
• British Microlight Aircraft Association
• CHIRP Confidential Safety Reporting
• EAA Home Page
• European Pilot Selection & Training
• Fleet Air Arm Officers Association
• Flight Safety Foundation
• General Aviation Safety Council
• Global Air Information Network
• Guild of ATC Officers
• IFATCA
• Netherlands Guild of ATC Officers 
• Popular Flying Association
• Royal Air Force Club
• Royal Air Force Charitable Trust
• Royal Aeronautical Society
• Royal Institute of Navigation
• SBAC
• Women In Aviation, International

Miscellaneous

• Airline News 
• Airwise Careers
• Aviator
• Aeroseek - Aviation Search Engine and Directory.
• Aircraft Performance Database
• Aviation History On-Line Museum
• Aviation Jobsearch
• Aviation Week Online
• Flight History
• Flight International
• GSM Info - Countries/Areas
• Higher Flyer
• History - Livery companies
• JAR ATPL Ground School from WATTS
• Landings
• Livery Companies of London
• PalmPilot for Aviators 
• PPL/IR Europe
• PPL UK
• Professional Pilots' Rumour Network
• Red Arrows
• Safeskies Conferences - Australia
• Scramble
• St Michael's Cornhill 
• Todays Pilot
• Winds of Hope
• Wings around the World

Other Guilds