The best source of information about anything to do with broadband in Australia is at Whirlpool.net.au.

Scroll down the home page for recent news and comment.
The ‘BROADBAND CHOICE” link takes you to a list of providers in your state.
The “DISCUSSION FORUM” link goes to a lively user forum.

If you are having problems with your broadband connection, pay a visit to www.ozcableguy.com for lots of practical advice.