For questions about how to gamificate (add game design elements) for making project activities more enjoyable and motivating.
"Gamification Wiki" definition:
Gamification is the concept of applying game mechanics and game design techniques to engage and motivate people to achieve their goals. Gamification taps into the basic desires and needs of the users impulses which revolve around the idea of Status and Achievement.
Good example of gamification is badge system on the StackExchange network.