Australia held a parliamentary election on August 21. Although all the votes are not counted yet, it appears the neither major party won a majority in either house.
The House has 150 seats. The tentative results are: Labour 72, Liberal 72, Green 1, and 4 independents, with one seat too close to call. Assuming the Greens do win that one seat, it will be the first time in history they have won a seat in the lower house. This story describes the 4 independents and the one Green elected to the House. The Green, Adam Bandt, was elected from Melbourne. Australia uses a system very similar to Instant-Runoff Voting for House elections. This story shows how that system made it possible for Bandt to win.
In the Senate, which is elected somewhat proportinately, the Greens may also have the balance of power. See this story. Greens already had five Senators and they may have eight Senators when all the votes are counted.