The Australian Computer Society (ACS) is your starting point for all matters IT, whether it be information, networking or employment and traineeships.

Also, partake in the many online IT forums, meet-ups and freelance opportunities. You are in an industry that changes faster than any other, so you are expected to be developing new skills on a daily basis.

Check out some of these links:

http://forums.whirlpool.net.au/
https://whirlpool.net.au/jobs/
https://www.elance.com/
http://ozlance.com.au/

And of course, LinkedIn forums – Aussie IT Jobs, Australian IT Industry, etc.