Since I wrote my last column I have been wracking my brain for a topic to discuss in this one. Then I attended Reading Matters 2017 in Melbourne and it all became clear to me. Twitter. But not just Twitter: Twitter as a professional development tool; Twitter as a force for awareness, for change. Twitter has been around for a long time now, at least in social media terms. Launched on 21 March 2006, Twitter is approaching its twelfth birthday stronger than ever.