This report was commissioned by the Danish government and written by the Institute for Strategic Dialogue (ISD). It draw on discussions and conclusions from three days of meetings in Copenhagen in June 2013 with a range of relevant stakeholders to discuss means of tackling online extremism. Co-organised by the Danish government and ISD, these international meetings invovled academics, practitioners, cnetral and local government policy makers, intelligence agencies and representatives from the private technology sector. The purpose of this paper is not to summarise discussions, but to draw on them to offer a framework and series of recommendations for the ways that governments should structure and resource their responses to online extremism.