Y. Ye, K. Kishida, “Toward an Understanding of the Motivation of Open Source Software Developers”, In Proceedings of the 25th International Conference on Software Engineering, pp 419-429, 2003.
Summary
This paper examines a number of Open Source Software (OSS) communities, especially the Gnu Image Manipulation Program (GIMP), in order to determine the key motivators for member participation. It found that the key factors are 1) opportunities to learn and 2) social recognition. The motivations to learn were different for initiators, the founders of the OSS project, than those that later entered the community.