»Remote Sensing Archeology Research at NASA - NASA uses remote sensing for archeology research in the Peten Guatemala, Arenal region of Costa Rica, and Chaco Canyon in New Mexico..
»Romeo Hristov's Web Page - Pre-Columbian transoceanic contacts, Mesoamerican archaeology Romeo H. Hristov, specialist on Mesoamerica. Graduate National School of Anthropology and History of Mexico, and Ph.D. (ABD) in Prehistory/Archaeology from the University of Salamanca, Spain.