Catholic Encyclopedia: Cyrenaic School of Philosophy 
Overview of this strain of classical thought, by William Turner.
http://www.newadvent.org/cathen/04591a.htmVoula Tsouna, The Epistemology of the Cyrenaic School
A review by Robert Todd of this scholarly work. Published in the Bryn Mawr Classical Review in 1999.
http://ccat.sas.upenn.edu/bmcr/1999/1999-10-02.html
Columbia Encyclopedia: Cyrenaics
Concise paragraph from the 2001 edition.
http://www.bartleby.com/65/cy/Cyrenaics.html
Internet Encyclopedia of Philosophy: Cyrenaics
Detailed survey of this school of thought, by Tim O'Keefe.
http://www.iep.utm.edu/c/cyren.htm
