The Business of Free Software: Enterprise Incentives, Investment, and Motivation in the Open Source Community

Cluster 1, the "money-driven cluster," consisted of projects that have received almost all of vendor INVESTMENTS. The eighteen projects in this cluster have received over $2 billion in INVESTMENT.

Cluster 2, the "community-driven cluster," has a large number of projects that have received almost no vendor INVESTMENT. IT vendors have generally ignored projects in this cluster and appear to have no coordinated strategy for dealing with them.

Website: http://www.arjonline.org/engineering/american-research-journal-of-computer-science-and-information-technology/