The governor-general is *not* the head of state. In theory, they are the Queen's representative in Australia. While, in practice, the gg acts without reference to the Queen, go check the CIA World Factbook, http://www.cia.gov/cia/publications/factbook/geos/as.html#Govt, the Monarchy's website http://www.royal.gov.uk/today/realms.htm, or, more to the point, the Australian constitution itself: http://www.aph.gov.au/senate/general/constitution/chapter1.htm
Some monarchists as part of the "no" campaign in the 1999 referendum made the claim that the gg was Australia's head of state, but virtually nobody agreed with them.
Some reference to this belief might be appropriate on the main page, but any claim that this represents popular or expert majority opinion is utterly false. -- Robert Merkel