http://www.rms.nsw.gov.au/geared
Geared is a great website for young drivers, supervisors and anyone curious about driving. Not only is it full of good info and tips for your Ps test from actual assessors, but also has real education on hazardous driving (for example, controlling your car in wet weather). 

http://www.service.nsw.gov.au
Services NSW
Book your learners/Ps test here, practice the learners test and all you need to know about road rules

http://www.adta.com.au
Australian Driver Training Association – representative body of professional driving instructors – information on choosing a driving school, tips for safer driving