I was really suprised to find out that Australia is about the same land mass as the continental United States. When I mentioned this to other people they were surprised too. Everyone knows its an island continent but the island part seems to mislead most.While it is a huge country/continent, it is not nearly as populous as the USA. Most of the inhabitants live around the perimeter on the coast line.
I found a number of good web sites with information about Australia but The World Fact Book (a CIA web site) give a clear and precise thumbnail sketch of the country. It's worth a read. This is also a great site for looking up basic profiles of lots of countries throught the world.