You can perform a search for a particular Australian artist based on either a keyword, genre, state, label, letter of the alphabet or year of music release as well as a combination of these. There's over 2,900 artists on AMO!
(Note: when you do a search, you'll get results for all the relevant pages that mentions who you're looking for, in alphabetical order. That includes artists' who use pseudonyms - so, for example, Cut Copy also comes up under 'W', because of Dan Whitford.)