ACM - affordances
Rilla Khaled
Pippin Barr
Brian Greenspan
Robert Biddle
Elise Vist
thinking aloud
Ludology meets narratology in game design space
Designing location-based mobile games with a purpose
The Future of Narrative in Cyberspace, The Free Press, New York, NY, 1997
Understanding geocaching practices and motivations
Simulations: A Safe Place to Take Risks in Discussing Cultural Differences