And the rewards are not even for this website, they are managed by "BigDoor" - a gamification startup Brad Feld has invested in: http://www.feld.com/wp/archives

And the rewards are not even for this website, they are managed by "BigDoor" - a gamification startup Brad Feld has invested in: http://www.feld.com/wp/archives/2010/06/fun-and-games-with-bigdoor.html http://www.feld.com/wp/archives/2010/06/fun-and-games-with-b...