Fact Monster: Plato
- Brief article covering the life and works of the Greek philosopher.
- http://www.factmonster.com/ce6/people/A0839328.html

Plato
- Includes biography and a chronological history of his writing and work. From the Internet Encyclopedia of Philosophy.
- http://www.iep.utm.edu/p/plato.htm

Wikipedia - Plato
- Encyclopedia articles covering the life and works of the ancient Greek philosopher.
- http://en.wikipedia.org/wiki/Plato