"'I'm a rabid libertarian,' says Greg Glassman, 56-year old founder of the worldwide fitness phenomenon called CrossFit.
Glassman opened the first CrossFit gym (or 'box' in CrossFit lingo) in the mid-1990s in Santa Cruz, California. Today, there are more than 7,000 CrossFit affiliates around the world. These affiliates are not franchises, they're independently operated boxes owned by entrepreneurs who pay $1,000 to get certified as a CrossFit trainer and then pay $500-$3000 annually for the right to use the CrossFit brand. Each affiliate is free to innovate, which makes CrossFit a kind of open-source fitness community. Despite - or because of - its unconventional approach, CrossFit is projected to generate $100 million in revenue this year."