Some impression from this years Barcamp.
BarCamp is an international network of user-generated conferences (or better unconferences). They are open, participatory workshop-events, whose content is provided by participants. The first BarCamps focused on early-stage web applications, and were related to open source technologies, social protocols, and open data formats. The format has also been used for a variety of other topics. In Asia, you will find also topics about culture.
Venues typically provide basic services. Free network access, usually WiFi, is crucial. In Vientiane provided free food and drinking water.
Attendance is monetarily free and restricted only by space constraints. Participants encouraged to sign up in advance.