The Olympic Museum - http://www.museum.olympic.org/
This site has information about the history of the Olympic movement.

Teaching with the Olympics - http://www.education-world.com/a_sites/sites047.shtml
This site links to several other sites about the Olympics

The United States Olympic Team - http://www.olympicgames.com
This site gives information about the United States Olympic team as well as general information about the Olympic Games.