Bar Camp is an ad-hoc gathering born from the desire for people to share and learn in an open environment. It is an intense event with discussions, demos, and interaction from attendees.
All attendees must give a demo, a session, or help with one. All presentions are scheduled the day they happen. Prepare in advance, but come early to get a slot on the wall.
Presenters are responsible for making sure that notes/slides/audio/video of their presentations are published on the web for the benefit of all and those who can’t be present.
Anyone with something to contribute or with the desire to learn is welcome and invited to join.
When you come, be prepared to share with barcampers. When you leave, be prepared to share it with the world.
You can learn more about Bar Camp in this Wired Magazine article. There is another nice article here.