In this TED Video Jane McGonigal makes the case of computer games ability to have profound impact on the real world. It is called “Gaming can make a better world” and I believe it! She was also on the Colbert show February 3rd, 2011 where I first got to here about her(!).
Here is the links to her website:
http://janemcgonigal.com/ (seems to be powered by wordpress.com…)
Here is the two games mentioned in the talk:
EVOKE (2010). A crash course in changing the world.
WORLD WITHOUT OIL (2007). Play it — before you live it.