Carl T. Bergstrom - Signalling Theory and Animal Communication
   On-line tutorial on signalling in economics and animal communication.
   http://octavia.zoology.washington.edu/handicap/

Evolution of cooperation
   This site presents a chapter on the evolution of cooperation in the ambitious book "Evolution's Arrow" by John Stewart.
   http://www4.tpg.com.au/users/jes999/5.htm

Evolutionary Dynamics Bibliography
   Contains many references on evolutionary game theory
   http://www.santafe.edu/~jpc/EvDynBib.html

Evolutionary Papers
   Selection of papers on Evolutionary Economics by Ulrich Witt.
   http://www.business.auc.dk/evolution/evolecon/literature/witt.html

Gintis, Herbert
   Full-text papers and class material covering game theory, the rational actor model in economic theory, experimental economics and anthropology.
   http://www-unix.oit.umass.edu/~gintis