Civilizations in America Contents - Olmec - The earliest civilization in Central America—and possibly the earliest civilization in the Americas—was the Olmec civilization which arose sometime between 1200 and 1000 BC. - http://www.wsu.edu/~dee/CIVAMRCA/OLMECS.HTM
The Olmec World - History and photographs of Olmec Big Heads and other artworks. - http://www.tribalarts.com/feature/olmec/
Olmec - Brief summary of this culture. - http://library.thinkquest.org/18778/olmec.htm
The Olmec - Essay overviewing the Olmec, with a map, pictures, and links. - http://www.mesoweb.com/olmec/index.html
Wikipedia- Olmec - Encyclopedic entry for the ancient Pre-Columbian people living in the tropical lowlands of south-central Mexico. - http://en.wikipedia.org/wiki/Olmec
Olmec Civilization - Extended description of the Olmec, their art and monuments, their history, religion, and culture. - http://www.crystalinks.com/olmec.html
National Geographic Magazine: August 1996 - Felipe Dávalos studies the colossal heads at the Olmec site of San Lorenzo in 1967. Taking careful measurements and notes of each detail, Dávalos drew every monument from four sides (above, right). Most scholars believe the sculptures are portraits of i - http://www.nationalgeographic.com/ngm/9608/bts/a061.html