We wish to thank each person who participated in the tagging study. We have listed all participants and their institutional affiliations, where relevant, below.

• Ximena Alarcon - De Montfort University
• Kate Armstrong
• Burcu Bakioglu - Indiana University
• Jim Benson - Gray Hill Solutions
• Bertha Chin
• Lisa Cianci - RMIT University, Melbourne
• Jenn Deering Davis
• Giulia Gelmini - Learning Sciences Research Institute, University of Nottingham
• Solveigh Goett (textiles project) - Centre for Narrative Research, University of East London
• Douglas Grant
• David Hayward - Pixel Lab
• Susan Hazan - The Israel Museum, Jerusalem
• Jeremy Hight
• Johanna Hunt - University of Sussex
• Chris Joseph - De Montfort University
• Joanna Kwiat - Knowledge Media Institute, Open University
• Sandy Louchart - School of Math and Computer Science, Heriot-Watt University,
• Rose Luckin
• Jem Mackay
• Steve Mackenzie - De Montfort University
• Michael Newman - University of Wisconsin-Milwaukee
• Ruth Page - Birmingham City University
• Andy Pulman - The School of Health & Social Care, Bournemouth University
• Indrani Roy - Fellow, Central Institute of Indian Languages, Mysore, India
• Natalia Rybas - School of Communication Studies, Bowling Green
  State University
• Jakub Štogr - Charles University in Prague
• Svea Vikander - University of Toronto
• Axel Vogelsang - SMARTlab Digital Media Institute, University of East London
• Sue Webb
• Tim Wright