[vicbrooker]

If you're interested in startup internships and you're in Melbourne the guys at http://www.tinalleybeta.com.au might be able to set you up somewhere. Other options are to ask around coworking spaces like inspire9 or york butter factory (Melb) or fishburners (sydney).

non-startups to look into: atlassian, campaign monitor, envato, 99 designs, canva (maybe).

Keep in mind that Australian employment law is a bit anti-internship: technically you can't contribute to a business' productivity without being characterised as an employee. So unpaid interns are, officially, not a thing here.

Unofficially, who knows where a bit of hustle can get you ;)