Feller, Joseph, and Brian Fitzgerald. Understanding Open Source Software Development. London: Addison-Wesley, 2002.

Hars, Alexander, and Shaosong Ou. “Working for Free? Motivations of Participating in Open Source Projects.” In System Sciences, 2001. Proceedings of the 34th Annual Hawaii International Conference on, pp. 9-pp. IEEE, 2001.

Lerner, Josh, and Jean Tirole. “The Open Source Movement: Key Research Questions.” European Economic Review 45, no. 4 (2001): 819-826.

Madey, Greg, Vincent Freeh, and Renee Tynan. “The Open Source Software Development Phenomenon: An Analysis Based on Social Network Theory.” In Americas conf. on Information Systems (AMCIS2002), pp. 1806-1813. 2002.

Pavlicek, Russell, and Robin Foreword By-Miller. Embracing Insanity: Open Source Software Development. Sams, 2000.

Weber, Steve. “The Success of Open Source.” Canadian Journal of Political Science 368. Cambridge, MA: Harvard University Press, 2004.

Zeitlyn, David. “Gift Economies in the Development of Open Source Software: Anthropological Reflections.” Research policy 32, no. 7 (2003): 1287-1291.