Free software has achieved amazing things in many fields, one of which is open publishing. The application of the open source methodology to this sphere has created a new media force - one that has already had a massive impact on the world through its successful efforts to block the Stop Online Piracy Act (SOPA) in the US. That, in its turn, helped people mobilise against the Anti-Counterfeiting Trade Agreement (ACTA) in 2012, which is now providing a template to resist the Transatlantic Trade and Investment Partnership (TTIP).