Play a Prisoners' Dilemma game (thanks to some folks at Brynmawr); includes links to other sites that discuss the P.D.

Auction design and bidding strategy is a part of game theory; you can bid at eBay's on-line auction.

The 1994 Nobel Memorial Prize in Economics was awarded to three game theorists -- Nash, Selten, and Harsanyi. Here's the press release that describes their work.

Two outlines of the history of game theory: shorter (by Thomas Fent, University of Vienna), and longer (by Paul Walker, University of Canterbury, N.Z.).

Strategy and Conflict: An Introductory Sketch of Game Theory (by Roger A. McCain, Drexel University).

A class page at the University of Arizona (set up by Mark Walker) has game theory links.

Other pages with game theory information and links maintained by professors at Harvard University (Al Roth), University of Tortonto (Gerry Mahar), UCLA (David Levine), and Columbia (David Epstein). Some of the information on these sites is rather technical, but much is not.