This deck is based on a paper we wrote for the SAMRA 2011 conference. It's a short introduction to some of the ideas underlying the concept of "gamification".
It also details the results from a simple experiment we conducted to measure the effectiveness of gamifying an online community. We were restricted by a tight deadline and the existing capabilities of the online platform we partnered with, but the results are still pretty clear (although small base sizes makes it difficult to draw solid conclusions). To follow up these tantalising results, we are writing another paper for ESOMAR Congress that collects more numbers describing the effectivness of gamification.
I had a lot of fun illustrating the deck. Hope you enjoy reading it.