This is for the House of Representative seats (the lower house of Parliament of Australia). Whoever can win a majority of support forms government. There is also an upper house, the Senate, whose 1/3 of seats are up for election tonight (it is like the US Senate). The Senate can block any bills passed in the House of Reps and they did bring down a government before, in 1975 (and it was the only truly left-wing government Australia ever had! Gough Whitlam of Labor.). Tonight it seems even the Senate race tilts into the Coalition's favour.
What's the current makeup of the Senate? Pro-coalition also?
Also, is there some sort of instant runoff system in Australia? I see a primary and then a preferences poll in the same result fields for each seat.