Game theory is a branch of applied mathematics that studies "rational behavior in interactive or interdependent situations." Often used in economics and political science, game theory is a tool to deal with uncertainty and make intelligent decisions. Mike Shor, a professor at Vanderbilt University, operates this Web site. Many useful resources related to game theory are offered, including lecture notes from various classes spanning a multitude of disciplines and colleges. There are links to educational online activities and interactive games that demonstrate the dynamics of game theory. Some of the materials were developed by Mike Shor, but most are from other sources.