Recreational Aviation Australia

https://www.raa.asn.au/our-organisation/

Bureau of Meteorology Aviation Weather

http://www.bom.gov.au/aviation/

Airservices – Aeronautical Information Package

Here you can download the:  AIP Book, AIP Charts, AIC, SUP, DAP, DAH, ERSA

http://www.airservicesaustralia.com/aip/aip.asp

Flyingsigns – for aerial advertising

http://www.flyingsigns.com.au/