The Economist's World's Most Livable Cities list in 2008

Melbourne coming in at 2nd, Perth at 4th, Adelaide at 7th, and Sydney at 9th.

AGL Energy

AGL Energy  is the largest Australian gas and electricity retailer.

read more in http://en.wikipedia.org/wiki/AGL_Energy

Telstra

Telstra is based in Melbourne, Victoria, Australia.

It is an Australian telecommunications and media company.

Telstra is the largest provider of both local and long distance telephone services, mobile services, dialup,wireless, DSL and cable internet access in Australia.

read more at http://en.wikipedia.org/wiki/Telstra