DEMOS is an innovative Internet service facilitating democratic discussions and public opinion formation as well as networking and active support for innovative projects. DEMOS aims to reduce the distance between citizens, administrations and political institutions by providing a socio-technical system for moderated and goal-oriented discourses involving numerous participants about political issues at national and European level. Since 2001 DEMOS has been applied successfully in different fields of e-participation, i.e. Hamburg performed public online discussions about its attractiveness and living conditions, the field of urban planning and the city’s budget and financial policy. Munich used DEMOS for a family discussion.