Johanna Bluemink, a gamer, researcher and vice-president of Finnish developer TeamingSteam (a subsidiary of Ludocraft whom you may know as the driving force behind the RealXtend virtual world platform) has completed her PhD dissertation on enriching collaborative learning through pedagogically scripted multiplayer games.
That dissertation is available online for those of you who are interested in serious-games-for-education, the use of collaborative gaming-spaces for positive pedagogical outcomes in small groups, and socio-cognitive approaches and problem-solving activities in face-to-face and virtual game settings.
Congratulations, Doctor Bluemink.