Gumtree probably is an Aussie thing. It's the free version of ebay. I get a lot of jobs, contracts, as well as buying and selling. Locality-driven classifieds.
Gumtree was founded in March 2000 by Michael Pennington and Simon Crookall as a local London classified ads and community site, designed to connect Australians, New Zealanders and South Africans who were either planning to move, or had just arrived in the city, and needed help getting started with accommodation, employment and meeting new people. In May 2005, Gumtree was acquired by eBay’s classifieds group, for an undisclosed sum. At the time of the acquisition, Gumtree already was available in multiple cities in a number of countries including the United Kingdom, Poland, France, Canada, Australia, New Zealand, South Africa and Hong Kong. Thee days it's all over the world.