A BarCamp has nothing to do with the Bar (in any sense of the word) and is not really a camp. The best summary of the concept that I have found is the one that appears in Wikipedia:
BarCamp is an international network of user generated conferences (or unconferences) - open, participatory workshop-events, whose content is provided by participants. The first BarCamps focused on early-stage web applications, and related open source technologies, social protocols, and open data formats. The format has also been used for a variety of other topics, including public transit, health care, and political organizing.
The advanced list of presentations included the following:
"Legal Issues of Web 2.0" is being tweeted more than any other document on SlideShare right now. So we've put it on the homepage of SlideShare.net (in the "Hot on Twitter" section).
Well done, you!
- SlideShare Team