In recent years, social innovation has experienced a steep career. Numerous national governments and large organisations like the OECD, the European Commission and UNESCO have adopted the term. Social innovation basically means that people adopt new social practices in order to meet social needs in a different or more effective way. Prominent examples of the past are the Red Cross and the social welfare state or, at present, the internet 2.0 transforming our communication and cooperation schemes, requiring new management concepts, even empowering social revolutions. The traditional concept of...