We all know what a BarCamp is ... this is how it's made in Sheffield.
26-27 May 2007: BarCamp Sheffield I : Original North
Abandoned: BarCamp Sheffield II
28-30 Nov 2008: BarCamp Sheffield 2.1 : Community and Conversation
19-21 June 2009: Unsheffield : Future Users of Cool Technology
16-17 April 2011: BarCamp Sheffield 3 : Back to Basics