Rewired State – I founded Rewired State in Australia, extending the long running community of hackers from Europe. (rewiredstate.com.au)
PHP – the Sydney PHP Group (Commercialising Your Opensource Application, Simple Scalability, How to Hack) (sydphp.org)
Data – Advocate to Universities, Apps for NSW, Government Engagement
Enterprise Search – Open Hack, Google Enterprise Search Community
Education – Coding for Kids, Macquarie University
Code – Visit my code page, also see my github.