I use
www.ancestry.com.au as a method of collecting info. They don't have an Australian specific colelction only world but they do ave a UK specific which is cheaper. Most of my relatives are UK so it is easy to collect info from census information. I really like to carefully study census information because sometimes name seem different but turns out to be a relative.
The cost may look high but you get full access to information, whereas other only allow partial access and depending how much data you collect will increase much higher. I also have an account with
www.genesreunited.com.au but don't like the interface. Looks fancy but uses computer resources. They charge access to documents per view.