Well, that's a good request, but I won't share links to casinos here. But don't worry, I will share something even better. Here's a list of Online Casinos in Australia you should use. That's where you will find reviews for numerous casinos and you will find something that will be to your liking.
Yes, you can earn money by gambling too, but you need to understand that it's not as easy as you may think. You need to come up with a good strategy, find a decent website, and also learn some tricks to win. Since you're a beginner, I suggest you casinoblox to try roulettes because they are quite popular and profitable.