Through my work with ALIA Sydney and the International Librarians Network, I have now experienced collaboratively creating two successful volunteer-run professional development communities. Both of these communities engaged professionals across the entire spectrum of experience including the newer sections of the profession by creating opportunities for them to build connections and create their own professional development. Recently I have written a couple of more formal research papers reflecting on my experiences using the communities of practice research literature, however today I will take a less formal approach and synthesize this to talk to you about how you can build your own strong, vital and sustainable professional development communities, plus share a bit of information about how you can join mine.