Domain  information
 .com.au For Australian Commercial entities, you must have a registered Company or Business and an ABN Number.
.net.au Is recommended for Australian Business that use the Internet as in Integral part of there Business.
.id.au For the people of Australia who want an online Identity.
.asn.au For Australian Incorporated Associations, Trade Unions, Political Parties, Sporting and Special Interest Clubs.
.gov.au For Australian Government Agencies.
.edu.au For Australian Educational Institutions.
.org.au For other Australian Registered Organisations.
.com Originally for Commercial Business Globally but now used by anyone.
.biz For Commercial Business Globally.
.name For personal use Globally.