WA Radio Scanner Users' Group

some one in a post asked about aircraft freq, on your computer you can tune into live air traffic control of flights and also visually track them on state and world map of thier flight position, inbound or outbound,,except for qantas domestic at the moment, you can select between domestic and international for all other movements.
http://www.liveatc.net/feedindex.php?type=international

Here is a Perth Only site

http://www.perthatc.spdesigns.net/index2.php

Slightly more reliable then liveatc.net