Well, I was reading through the NZ Mustachians thread and somebody suggested a facebook group. I though, hey, that's a good idea, since we aren't having a huge amount of luck in actually having a physical meetup. So I've set up a facebook group, "Sydney Mustachians".
Please join! I'd love to have a community on there.
On the flip side, I have to say, in setting up the group I had to include a few facebook friends in order to have the group. Going through my friends list... I don't actually believe I have many Sydney Mustachian friends at all. Maybe cause Sydney is really expensive?