I wrote a follow-up of sorts to my post here The Problem with Gamification:
With all this in mind, is it possible to effectively apply game mechanics to work-related applications? The jury’s still out on Rypple and Moxie’s implementation of badges, but I’m hopeful about both. Meanwhile, Pietro Polsinelli has written an essay on game mechanics and how he applied game design to his social bookmarking/task management web app Licorize. Polsinelli considered how certain common game activities correlate to activities in the application and added points and scoring to those activities. The essay is well worth reading for anyone interested in game mechanics in work related applications.