Presentations & White Papers

Putting the Fun into Functional - Amy Jo Kim, Shufflebrain

Designing your Reputation System - Bryce Glass, Yahoo

Reputation System Design Patterns - Yahoo Developer Network

Engaging Customers Through the Online Channel - IDC

Articles

The Wrinkled Future of Online Gaming - Wired 12.06, June 2004

• "The badges are virtual trophies players win for achieving their high scores in Pogo games, such as bridge or solitaire. Illustrated like weird Japanese snack bags, they're digital images about the size of a postage stamp. When Frentzel uploads a new batch of badges each Wednesday at 7 am, thousands rush Pogo's game rooms, hungry to win and post their acquisitions on personal profile pages."
• "Badges aren't just hokey, pixelated tchotchkes, he says; they're sources of pride and self-esteem."

Using Ice Cream to Understand Frequent-Flier Miles - The New York Times, April 25, 2006

Xbox 360 Achievements Unlocking Higher Sales, Says EEDAR - GameDailyBiz, October 16, 2007

Study: Achievement-rich games sell better - GameSpot, September 30, 2008

Xbox Live: Gamerscore - Wikipedia

Books

Predictably Irrational - Dan Ariely

Influence - Robert Cialdini

Freakonomics - Steven D. Levitt, Stephen J. Dubner

Other

Metrics for Healthy Communities - Tara Hunt, Citizen Agency

I Love My Chicken Wire Mommy - Ben Brown, founder of Consumating

BadgeAddicts.com - for those addicted to Pogo badges