Paleoindians and the Great Pleistocene Die-Off - Essay with teaching resources on the Pleistocene extinctions, by Prof. Shepard Krech of Brown University. - http://www.nhc.rtp.nc.us/tserve/nattrans/ntecoindian/essays/pleistocene.htm
The Paleoindian Period - An illustrated overview from the Southeast Archaeological Center. - http://www.cr.nps.gov/seac/paleoind.htm