The following are provided as useful links.
Western AustraliaOrganisations
Music Resources for Smaller Churches
Perth Concert Hall
Pipe Organ Plus
St. George's Cathedral
St. Mary's Cathedral
St. Patrick's Basilica
Stirling Theatre Organ Productions
Theatre Organ Society of WA
Uniting Church in the City
University of Western Australia Choral Society
Western AustraliaOrgan Builders
Allen Organ Studios (WA)
Orgues Létourneau
Pipe Organs of WA Pty Ltd
Pipe Organ Logic
South Island Organ Company
Rudolf von Beckerath Orgelbau
Western AustraliaOrganists
Jonathan Bradley
Jangoo Chapkhana
Joseph Nolan
Dominic Perissinotto
Alessandro Pittorino
AustraliaOrganisations
Australian and New Zealand College of Organists
Organ Historical Trust of Australia
Organ Music Society of Adelaide
Rod Blackmore's Australian Theatre Organs
Society of Organists Victoria
Sydney Organ Music Society
The Organ Society of Queensland
Theatre Organ Society of Australia
Theatre Organs under the Southern Cross
New ZealandPipe organs in New Zealand
Australian and New Zealand College of Organists
New Zealand Association of Organists
New Zealand Organ Preservation Trust
AsiaPipe organs in Asia
The Pipe Organ in China Project
Pipe Organs of China
Pipe Organs of Indonesia
Pipe Organs of Japan
Pipe Organs of Korea
Pipe Organs of Malaysia
Pipe Organs of Myanmar
Pipe Organs of Singapore
Pipe Organs of Taiwan
Pipe Organs of Thailand
Pipe Organs of the Philippines
Pipe Organs of Vietnam
InternationalOrganisations and sites of interest
American Guild of Organists
A young persons guide to the Pipe Organ
Ars Organi
Confederazione Organistica Italiana
Edinburg Society of Organists
Encyclopedia of Organ Stops
Het Orgel
History of the Pipe Organ
How does a Pipe Organ work
Incorporated Association of Organists
Instrumente Ladach
Orgelbau Kuhn
The Organ Clearing House
The Organ Historical Society
Orgelverzeichnis Schweiz und Liechtenstein
Pipe Organ Society of Ireland
Reed Organ Society
The Ashton Hall Project
Tower Bells Organisation