How to use computers and the Internet: the NBN assumes you know all this. If not, this SA Govt site will help. A lot.
Broadband Today: broadband tutorials and consumer information
Whirlpool: industry news, broadband plan comparisons and forums
Australian Communications Consumer Action Network a key consumer lobby group. Broadband, phone and NBN service guides
For the technically minded
Key NBN technical documents, reports and presentations are here