1. HCI, University of Bremen, Germany
2. UCL Interaction Centre, University College London, United Kingdom
3. Digital Media Lab, TZI, University of Bremen, Germany
4. Institute of Applied Computer Science, Lodz University of Technology, Poland
5. UCLIC, UCL, United Kingdom
6. Division of Psychology and Language Sciences, University College London, United Kingdom
7. Utrecht University, Netherlands
8. University of Bremen, Germany
9. University of St. Gallen, Switzerland and University of Oslo, Norway