Ancient Greece for Kids
http://www.historyforkids.org/learn/greeks/index.htm
Various aspects of Greek history written specially for students

Greek Mythology
http://www.greekmyth.com
Myths from Greek Mythology

Classical Greece
http://www.historyforkids.org/learn/greeks/index.htm
History, maps, government, daily life, religion, philosophy, sports, art, and architecture in Greek Classical Period