BarCamp is an international network of user generated conferences — 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. (Source: wikipedia at: http://en.wikipedia.org/wiki/BarCamp).