This takes rewards to a whole new level. Do you think people contribute to this website because the are motivated by the cash rewards or because they are genuinely interested in problem solving?
A video game is being created in the UK "that will engage and immerse young people in learning about democracy and the role of Parliament in scrutinising the government, representing the public, and making laws."
This game does a great job of incorporating the social aspect of gaming. In addition, Sokikom uses classroom management techniques to reward postive behavior through "class cash." It would be interesting to look at what behaviors are actually transferred into the classroom.