http://memory-alpha.org/en/wiki/In_the_Cards_%28episode%29
http://www.time.com/time/2005/100books/0,24459,snow_crash,00.html
http://dresdencodak.com/
http://www.politicalcompass.org/
http://www.iop.harvard.edu/extension/forms/research_political_personality_test.php
http://en.wikipedia.org/wiki/Factor_analysis
http://threepanelsoul.com/