Gamification Summit 2012 videos are published and free of charge
The videos contain forecast as well as basic modells and case studies of Gamification and related topics.
Two videos I can recommend are Nicole Lazarros talk about 4 types of fun/ motivation which can be found in games and similar activities.
Successful Gamification Strategy: Emotions, Not Badges
And Michael Wus talk about three elements which are essential to amplify certain behaviors: Motivation, Ability and Trigger.
Michael Wu: The Science of Gamification
There are many more videos about the science of making the world a more engaging and motivating place.
Go through the videos and feel free to post your favorites.
