Danny DeVries has a great post about the tribes of FOSS4G. So great in fact, that I shamelessly copied his title. His post looks at FOSS4G from the point of view of an interested outsider, and this helps him give a “1000ft” perspective on the interactions between the various “tribes” that are difficult to see at ground level (when you’re heavily involved in doing your particular thing). His closing paragraph is worth reading all by itself as a “why” for open source software and interoperability. Nice one!