If you are going to major in economics you might want to think about joining the Economic Society of Australia. Each Australian state has a branch of the ESA and you would therefore join the Victorian Branch.
Student membership is $37 (compared to $87 for non-students) and, for that you get the main Australian economics publication, The Economic Record, plus the monthly newsletter Ceteris Paribus, which describes all the major economics meetings held in Melbourne and most importantly for students provides a list of job opportunities in the economics area. It also has article.s of economic interest.
Membership details are provided at the hyperlink above.