Superannuation is Australian retirement savings/investment scheme. The mandatory deposits to a superannuation fund amount to 9% of individual's gross salary.
Members of the military get different arrangements.
A good source of information regarding superannuation is Super Guide web site.
Industry super funds generally have lower maintenance fees and lower or no contribution fees. They are "not-for-profit" super funds. Usually they are multiemployer funds run by employer associations and unions.
Some of these type of funds are VicSuper, Australian Super, etc.
VicSuper: site • investment options • members online
Vanguard Australia used to offer personal super funds, with minimum amount of A$20,000.
Vanguard Personal Super has been transferred completely to Plum Financial Services (link) in 2011. Online access - (link).