I found this fantastic article (via anthropologi.info) on what motivates people to participate in the open source movement. Whenever we start to talk about gift economies and get into the social psychological space, I start to get a little leary. And, as usual, anthropologists feel the need to stroke their intellects by using phrases like 'axiom of kinship amity' and invoking Bourdieu. But nonetheless this is a thought-provoking article.

David Zeitlyn – Gift economies in the development of open source software: Anthropological reflections