Advertise yourself as Sydney accountants
If you live and work in Australia, they'll be times when you'll need a job doing and/or require goods and other services. You could nip down to the local newsagents and purchase the latest local paper; but why go to all that effort when you can fire up your desktop or laptop and look online (providing you own one of course). There is an online business directory that covers the Melbourne area which advertises everything and anything. Hundreds of local companies subscribe to it and all you have to do is choose one that best suits your requirements. If you own or run an accountancy firm that is located in the south of the country, you could subscribe to the website yourself under the heading of Sydney accountants.
If your company has for some reason lost some valued clients in recent times - maybe they've had to close down due to the current economic climate - and you need to attract others, then advertising your services in this manner is perfect. You will naturally place ads in the local or maybe even in the national newspapers, but the audience you will reach is limited. There aren't many people in the world today that don't have internet access of some sort - even the smart phones of today have the capability to search the web; and a company that is looking for someone to assist with its finances is sure to have at least one computer at its disposal.