We’ve been overwhelmed with websites mentioning Lee’s class so here they all are in one big list:
DICE 2010: “Design Outside the Box”
The video that started all the buzz!
At Indiana U., a Class on Game Design Has Students Playing to Win
The Chronicle of Higher Education
Professor Ditches Grades for XP System
slashdot
College Game Design Classes Graded Like World of Warcraft
Techland
Employers: Look to gaming to motivate staff
itnews
Professor Abandons Grades for Experience Points
the escapist
Prof Subs Grades for Experience Points, Presentations With Quest
Switched
Fighting monsters, taking tests
hastec
Professor Abandons Grades for Experience Points
Technoccult
Build Your Own Sheldon Syllabus
Terra Nova
Game Theory
business bytes genes molecules
The Instance #182 – “It’s Pronounced Throatwobbler Mangrove”
The Instance Podcast
Professor Users RPG-like Exp Rather Than Grades
Tom’s Guide
Replacing school grades with an XP system
The Escapist Blog
Is Game Design The Future of Marketing?
neboblog
XP Replaces Grades in Indiana University Classes
current
University class swaps grades for experience points
Yahoo plugged in
XP Replaces Grades in Indiana University Classes
GamePolitics
Game design professor beta tests a new grading system
GamePro
More Role Playing in the Classroom
Class Notes
Classes in a MMO format
Tree of Life
Can a College Class be a Game?
Of Teeth & Claws
Transformando a sala de aula em videogame
Psicologico
Gaming the Classroom
Spotlight on Media and Learning
Das ganze Leben ist ein Spiel
educational-gaming.de
Jesse Schell: future of games from DICE 2010
WIRED: Beyond the Beyond
Are we missing any? E-mail us at gamingtheclassrom (at) gmail.com to let us know!
Gaming the Classroom 
Just want let folks know that David Wiley at Brigham Young University used a very similar structure for his course several semesters ago. It was written up in the Chronicle here:
http://chronicle.com/blogPost/Professor-Turns-His-Online/4407
My colleague at Austin College Kirk Everist and I tried a more circumscribed version of the grading and assignment structure for our Immersion Media course last Spring.
This XP system in class is an amazing idea! I mentioned it on my blog http://migre.me/tAfD (in portuguese).
I know you guys will try to call bullshit…but I was in this class last semester. Fall 09′ TEL-T 367
I got an A 😉
Lance