Myriam Lewkowicz is Assistant Professor / Maître de Conférences at UTT . Previously, she has been Projet Director at COG-Net SA and a Research Engineer at the Université Paris Dauphine. Her education includes studies at the Université Pierre et Marie Curie (Paris VI) and the Université Paris Dauphine. She holds a PhD in Computer Science, which included research on Computer Supported Cooperative Work, teaching Information System Analysis and Design, colaborative work, Project Management and work as a Consultant on Knowledge Management and Collaborative Work. Myriam Lewkowicz’s Specialties include: collective activities analysis, collective problem-solving assistance, multidisciplinary design, designing groupware, project management, and expert knowledge acquisition. Myriam Lewkowicz’s interests are: Information and Communication Technologies, Computer Supported Cooperative Work, E-communities, Knowledge Managament, Management Information System, Sense Making, Human Computer Interaction, Languages and Linguistics and Hermeneutics. Markus Rohde studied psychology and sociology at the University of Bonn and is one of the founders of the International Institute for Socio-Informatics (IISI) and co-editor of the International Report on Socio-Informatics. Since 2004 he has been working as a research associate at the Institute for Information Systems and New Media at the University of Siegen, and since 2008 as research manager for Community Informatics. Moreover, he is an editor of the political science journal "Forschungsjournal Neue Soziale Bewegungen" (New Social Movements). Since 1991, his research has focused on usability engineering of network systems, on virtual organizations, and on "organization and technology development". From 1994 until 1997 he was working as a consultant for medium-sized enterprises and for nonprofit-organizations. From 1997 until 2001 he worked as CEO of AGENDA CONSULT GmbH. From 2002 until 2004 he was working as a project managerfor IISI. In