As Crossfit continues to grow in popularity, many people are jumping on the bandwagon, finding Crossfit gyms or "boxes" to train in. If you are totally new to Crossfit, basically it started out as a small community of fitness enthusiasts created by a guy named Greg Glassman, who would post daily Workouts of the Day (often called "WODs") as part of the fitness regiment.
Eventually this small community continued to grow to the major Crossfit movement that is known today with large competitions that are even featured on ESPN, known as the Crossfit Games, and feature the World's Fittest Athletes, such as Rich Froning, who has won the Crossfit Games multiple times.
With the growing popularity, this movement has unfortunately come across some scrutiny, most of featured on the popular fitness site Men's Fitness, where there are multiple former Crossfit athletes voicing their concerns. There are some interesting points of view presented here from a Police Officer who was simply fed up with a bad Crossfit Coach, to a woman who refused to date anyone who did Crossfit. It's an interesting read (if you can stand having to sit through a few minutes of advertising to check it out), especially if you are serious about giving Crossfit a try.