Aviation Historical Society of Australia (AHSA)

http://www.ahsa.org.au

The Aviation History Online Museum

http://www.aviation-history.com/index.html

The Airways Museum & Civil Aviation Historical Society
http://www.airwaysmuseum.com/

Early Australian Aviation

http://www.australia.gov.au/about-australia/australian-story/early-austn-aviation

American Historical Aviation society
http://www.aahs-online.org/

Oz Aviation

http://www.ozaviation.com.au/

Australian National Aviation Museum
http://www.aarg.com.au/

Historic Aviation society

http://www.haa-uk.aero/

Monash University  Aviation History site (Hargrave)

http://www.ctie.monash.edu.au/hargrave/index.htm

Canadian Aviation Historical Society

http://www.cahs.ca/

Old Machine Press – a fascinating site with lots of info about aero-engines and aircraft

https://oldmachinepress.wordpress.com/