How casual games like Guitar Hero, Bejeweled, and those for Nintendo Wii are expanding the audience for video games. We used to think that video games were mostly for young men, but with the success of the Nintendo Wii, and the proliferation of games in browsers, cell phone games, and social games video games changed changed fundamentally in the years from 2000 to 2010. These new casual games are now played by men and women, young and old...