Protagoras
Links
In Defense of Protagoras
http://www.geocities.com/inescapableennui/s12.html
Essay asserting that Protagoras has been misconstrued as an individual (or absolute) relativist, and should be considered a "human relativist."
Protagoras
http://www.in2greece.com/english/historymyth/history/ancient/protagoras.htm
Short article summarizing this thinker's thought.
Protagoras
http://www.kat.gr/kat/history/Greek/Tc/Protagoras.htm
Article from the 2000 Encyclopaedia Britannica. Treats of Protagoras in connection with the other members of the Sophist school.
Protagoras
http://www.wikipedia.org/wiki/Protagoras
Brief Wikipedia article on this thinker, noting his relativistic and agnostic teachings.
Protagoras
http://www.iep.utm.edu/p/protagor.htm
Internet Encyclopedia of Philosophy article by Carol Poster. Deals extensively with what we know about the life, doctrines and influence of this Sophist.