Open Source Paradigm Shiftby Tim O'Reilly June 2004 This article is based on a talk that I first gave at Warburg-Pincus' annual technology conference in May of 2003. Since then, I have delivered versions of the talk more than twenty times, at locations ranging from the O'Reilly Open Source Convention, the UK Unix User's Group, Microsoft Research in the UK, IBM Hursley, British Telecom, Red Hat's internal "all-hands" meetin
