Maya Indians http://www.mayankids.com/mkintro.htm
Incan Brainteaser http://kids.nationalgeographic.com/Games/PuzzlesQuizzes/Brainteaserinca
Mayan travel bureau. http://www.nationalgeographic.com/bureau/index.html
Reference Resource http://www.factmonster.com/
Social Studies for Kids http://www.socialstudiesforkids.com/