Google's Australian Election Tools
It is probably old news to some, but Google have put up an information page on the upcoming Australian Federal Election.
The most useful tool is the Google Maps overlay that provides information about the different electorates. At the moment it only has information about the sitting members, their margin and links to relevant news articles. Presumably more information will become available once the election actually gets called.
Presumably they are planning on offering similar tools for next year's US elections and this is a beta. So even if you aren't interested in Australian politics, it might be worth a peak to see what is provided.