The development of SDIs has continuously evolved and changed since their creation in the 1990’s, originally to enhance the ability to share spatial data. There is now the need to link and deliver a greater range of services and information to users across national, state and local jurisdictions, organisations and disciplines in order to support a spatially enabled society. The concept of a Virtual Australia, development of online players such as Google Earth and the increased need for integrated data and services is creating the need for the Australian SDI to be re-engineered to be able to meet this new challenge.