Milgram (gehoorzaamheid)
The stanley milgram website offers the definitive, accurate source of information about the famed social psychologist and his work in the field of obedience to authority.
http://www.stanleymilgram.com/
Stanford prison experiment
Official web site of the stanford prison experiment, a classic study on the psychology of imprisonment -- definitely worth a visit!
http://www.prisonexp.org/