Over the past decade, open source software has emerged as both a powerful player in the software market, and as a powerful tool in maintaining a balance between providing incentives for creators and maintaining a robust commons. This seminar will cover the open source licenses used in the software community. It will furthermore explore the major issues that individuals and corporations face in utilizing open source software. In particular, the seminar will discuss the enforceability of open source licenses, and examine the traditional firm model of software development and how open source software fits into that paradigm. It will also explore alternative applications of the open source model, such as "Open Source Biology" and the Creative Commons license.