Odyssey of the Mind http://www.odysseyofthemind.com or www.georgiaodyssey.org
Future Problem Solving http://www.fpsp.org
Jr Great Books http://www.greatbooks.org
Saturday School for Scholars and Leaders http://education.gsu.edu/saturdayschool
Young Eagles Aviation Program Fun aviation activities for children http://www.youngeagles.com
NASA website Children's section with aviation and space activities http://www.nasa.gov