Many downloads and lesson material related to specific Autodesk products and industries are available on this new portal.

Main site:
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The review process for the NATSPEC National BIM Guide has been completed and it is now available for use.
Learn more about the project or download the NATSPEC National BIM Guide document set v1.0. [390 KB]
The associated NATSPEC BIM Object/Element Matrix can be downloaded separately here. [4 MB]

NATSPEC is a specification framework that is widely used here in Australia.  I received an email from Mark Cronin today that alerted me to the significant number of BIM related resources they have developed or facilited.

The main portal link is:
NATSPEC BIM Portal

On the projects page you can find links to a number of other resources, such as:
NATSPEC BIM Scheduling project
Start date: 2010 Status: Complete
NATSPEC undertook this project as an initial response to subscribers’ requests to develop a standardised Australian practice for the exchange of digital building information. The goal of the project is to recommend a consistent, systematic approach to allocating properties to BIM objects to facilitate the generation of useful schedules.
View pages about the project
or download the project report.

Further information on BIM scheduling can be found at the Resources page

buildingSMART BIM survey
Start date: 2010 Status: Complete
NATSPEC hosted a survey on current patterns of use of BIM in Australia as part of the economic study commissioned by the Australian Government’s Built Environment Industry Innovation Council (BEIIC) to examine the potential for BIM to improve the productivity of the building sector. (See BEIIC BIM Economic study.)
See a summary of the survey results in Chapter 5 of the BEIIC study report
. Click on link at bottom of page to download

Thanks again to Mark Cronin for the heads-up on this one!