Theories in Evolutionary Psychology

http://plato.stanford.edu/entries/evolutionary-psychology/

This link provides many interesting facts about evolutionary psychology. For instance, the experts who wrote the article believe that the brain is essentially a computer that is used by the body to process information the environment sends it. Also, a theory that is mentioned is that the cognitive models the people of our time know of were adaptations from our ancestors.
This article gives an excellent overview evolutionary psychology in that it gives current theories and uses logic to back them up. In addition to the theories, they discuss the differences between biology and evolutionary psychology.