The European Sociobiology Society is distributing "on approval" an interesting software program, called HANS.
Major topics include Cooperation, Deception, Emotion & Cognition, Fitness, Groups, Parental Investment, Killing, Law, Morality, Mate Choice, Marriage, Physique, Residence, and Sex. There are roughly 10 subtopics under each heading.
Pressing "return" jumps to a paragraph summary of existing work on the highlighted topic; pressing F6 takes you to the original references. The "Escape" key backs you out of the information tree, back to the topics list, and even out of the program.
The cover letter referred to some "naive errors" in HANS 1; I'm not sufficiently far enough into it to spot them.
The program costs about $40, VISA is fine. HANS 2 is promised for a discounted price; however, it may not be available for some time. Order from: Dr. V. Falger, (Treas. ESS), Dept of International Relations, University of Utrecht, Janskerhof 3, 3512 BK Utrecht, Netherlands. Email to: "email@example.com".