1. University of Bremen, Germany
2. Utrecht University, Netherlands
3. Chalmers University of Technology, Sweden
4. HU Berlin, Germany
5. University of Oldenburg, Germany
6. HCI Group, University of Duisburg-Essen, Germany
7. University of Oldenburg, Germany and OFFIS - Institute for Information Technology, Germany
8. University of St. Gallen, Switzerland and University of Oslo, Norway