The new issue if Dialogues in Human Geography contains a forum on public geography and social media. The articles are currently open access. The section focuses on geography, but the issues discussed relate to broader discussions around public engagement and communication in research. As is usual with this journal, the forum contains a feature article, some responses and a reply from the authors of the feature article. This particular forum is built around a feature article on ‘Public Geographies through Social Media‘ by Rob Kitchin, Dennis Linehan, Cian O’Callaghan and Philip Lawton. Their article describes their attempts at using a combination of blogging and Twitter to communicate their research. There are six responses, these include my own piece ‘Public Geography and the Politics of Circulation‘ (which is currently open access). I’ve posted about this previously.