http://www.gutenberg.org/catalog/ – a good site for original texts that are out of copyright

http://criminal-justice.iresearchnet.com/ – general criminology and criminal justice site offering some succinct overviews of the main theories and types of criminology

http://www.bbk.ac.uk/lib/elib/databases/science/psyc – a very wide range of psychological publications

http://www.personalityresearch.org/ – a collection of useful information about personality

http://www.apa.org/monitor/2014/02/criminal-mind.aspx – useful information pages on the American Psychological Association’s website

http://www.psychology.org/resources/ – the Encyclopedia of Psychology, which ‘record[s] and analyze[s] the evolution of the field’

http://www.eugenicsarchive.org/eugenics/ – the online US Eugenics Archive

http://crimepsychblog.com/ – useful for brief information (though it usually needs to be followed up) and also includes links to longer journal articles