Iterated Prisoner's Dilemma  www.iterated-prisoners-dilemma.net Game and simulation based on Prisoners Dilemma game theory as described in The Selfish Gene by Richard Dawkins: coded in Javascript by Wayne Davis.

Iterated Prisoner's Dilemma  www2.lifl.fr/IPD Information on the Iterated Prisoner's Dilemma, a major topic in artificial life, and a look at cooperation (and evolution of cooperation) between agents.

The Prisoner's Dilemma  prisonersdilemma.groenefee.nl A simple yet powerful model for the problem of cooperation versus conflict in groups. The JAVA applet demonstrates the spread of 'altruism' and 'exploitation for personal gain.'

Prisoner's Dilemma by the constitution web site  www.constitution.org/pd/pd.htm Some links on ethical and political aspect of the Prisoner's Dilemma.

Stanford Encyclopedia of Philosophy entry  plato.stanford.edu/entries/prisoner-dilemma This is a very complete description of the prisoner's dilemma and its variations.

The Taumoda Lab  www.taumoda.com/web/PD/lab.html This site offers a way to learn how to study the evolution of cooperation through 3 models, based on the Prisoner's Dilemma. (Java applets included).

Xerox PARC  ftp://parcftp.xerox.com/pub/dynamics This is a directory containing a lot of papers on Dynamics of Computation Area (Evolution of cooperation) from the XEROX PARC.