This is from http://freeasinkittens.com/erics-blog/another-drupal-camp – Eric Goldhagen's blog, and was written about Drupal Camp in NYC but applies to the ZL(u)C, too.
- An unconference is a participant centric conference, the structure is more concerned with the value to the participants than the value for the sponsors or organizers (in a similar way that the GPL Free Software license is more concerned with the rights of the software user than the software owner)
- At a normal conference, the hallway conversations tend to be the best parts. At an unconference, it's all hallway!
- unconfernece tires to replicate the community centric nature of Free Software projects in the way we organize an event. Everyone is a participant.
- Whoever shows up are the right people to have here
- Whatever happens is what is supposed to happen
- If you find yourself in a place where you are neither learning or contributing, be respectful but use your feet to find another room where you can learn and contribute
- Your participation is not only welcome, it's necessary
Much more info about (un)conferences can be found at http://www.unconference.net/%7Cunconference.net