The C4DUdG group at the University of Girona creates MOOCs to promote science communication, open learning, and public outreach. They have produced four MOOCs so far covering topics in chemistry and science communication. Their current project, MOOCs4ALL, aims to develop low-cost MOOCs through collaboration between five partner institutions. The group sees MOOCs as a way to foster open knowledge and hopes to apply lessons from initiatives like Wikipedia to improve MOOC design and delivery across languages.