Blownhemi, I hope you make Truckers Report a regular place to join the discussion. We need to compare the North American trucking industry with the rest of the world. If you are interested in regulations and working conditions, Truckers Report is the place to be.
A forum more oriented to equipment is Hank's Truck Pictures, and he has an Australian category. Some topics are: Drought, Aussie Trucking Songs, Road Train Photos, and Australian Fallen Flags. Obviously, Hank's is about more than photography, but the emphasis is on industry history, photos old and new, driver stories, etc.