On 19-20 January 2015, the VOX-Pol network is organising a workshop in Brussels on the ethics and politics of the day-to-day monitoring of the Net for material promoting violent extremism — by police, intelligence agencies, the Internet industry, and private groups and individuals. It will be a fully participative event, with short keynotes from leading experts followed by intensive debate and discussion, and including stakeholders from civil society, technology companies, and law enforcement agencies.