Daniel Cronin's ICP Parking Lot photos have already circumnavigated the Web world a few times. Don't feel bad if they passed you by, but do take a look. Cronin simply documented, and the result is pure journalism -- information that the audience is trusted to process however it will.
Many audience members will respond with laughter. And that's okay. The Juggalos probably derive as much nourishment from mockery as they do from their omnipresent bottles of Faygo.
Cronin's text introducing ICP Parking Lot gets at something about Juggalo culture that's generally overlooked: "They have built an entire lifestyle and genre of music with little to no main-stream backing over the last 15+ years."
It's a detail mentioned early on in this 17-minute long infomercial advertising The 2010 Gathering -- a four-day long multi-media festival and the only sponsor is Insane Clown Posse's own media company, Psychopathic. Chew on that for a minute. Four days of music, film, and other entertainments all done without outside corporate sponsorship.
Does Burning Man have corporate backing? Did Dischord ever put together anything this big? Counter-culture, punk, DIY ... whatever. Be impressed or be afraid, but do pay attention.