Christopher M. Kelty is an associate professor at the University of California, Los Angeles. He has a joint appointment in the Center for Society and Genetics and in the department of Information Studies. His research focuses on the cultural significance of information technology, especially in science and engineering. He is the author of Two Bits: The Cultural Significance of Free Software (Duke University Press, 2008), as well as numerous articles on open source and free software, including its impact on education, nanotechnology, the life sciences, and issues of peer review and the research process in the sciences and in the humanities.