CivWorld

This is a great site for people interested in using Sid Meier's Civilization for learning academic content, including history, geography, or even game design. They have custom-designed game scenarios, curricula, case studies, and experts on using Civ for learning. Their goal is to help players, students, parents, and even teachers use the game at home, in after school centers and maybe even classrooms.

http://civworld.gameslearningsociety.org/