Classical Skepticism: Issues and Problems Classical Skepticism: Issues and Problems: By Peter Suber of Earlham College (Skepticism) http://www.earlham.edu/~peters/writing/skept.htm
Aporetic Philosophia Aporetic Philosophia: A discussion of the development of Greek skepticism from Pyrrho to Sextus Empiricus. A reference provided by Aporetic World Music. (Skepticism) http://www.aporeticworld.com/historicalsources/
Ancient Skepticism Ancient Skepticism: From the Stanford Encyclopedia of Philosophy, by Leo Groarke. Article on the two movements in ancient philosophy, Pyrrhonism, and Academic Skepticism. (Skepticism) http://plato.stanford.edu/entries/skepticism-ancient/
Ancient Scepticism and the Contra Academicos of St. Augustine Ancient Scepticism and the Contra Academicos of St. Augustine: A paper by Bernard Wills closely examines the logic of Augustine's response to ancient scepticism in his Contra Academicos. (Skepticism) http://www.mun.ca/animus/1999vol4/wills4.htm
Ancient Greek Skepticism Ancient Greek Skepticism: An article on skepticism in Ancient Greece from the Internet Encyclopedia of Philosophy, by Harald Thorsrud of Temple University. (Skepticism) http://www.utm.edu/research/iep/s/skepanci.htm