ArmchairGM aims to be the ultimate community of sports fans -- a place where fans of games ranging from baseball and football to auto racing and mixed martial arts can congregate around a common theme: Fans rule.

The site uses MediaWiki -- the software that powers Wikipedia -- to create a community where fans can write and publish their own thoughts and vote on those of others. They can rate posts, players and teams, and they can join groups of other fans built around a player or topic.

According to ComScore, 70% of ArmchairGM's readers are male, and 74% have a household income of $60,000+.