To learn more about Beringia, the Land Bridge to the Americas, check out these sites and sources:

http://instaar.colorado.edu/QGISL/bering_land_bridge/downloads/beringlandbridge1m.mov

http://www.alaskan.com/docs/beringia.html

http://www.beringia.com/

http://library.advanced.org/27130/eng/2.htm

http://weber.ucsd.edu/~dkjordan/arch/beringia.html

http://en.wikipedia.org/wiki/Bering_Land_Bridge

Topics Related to Beringia:

Paleo-Indians, The Clovis Culture:

http://en.wikipedia.org/wiki/Paleo-Indians

http://www.lth6.k12.il.us/schools/gallatin/paleo.htm

http://www.saa.org/PubEdu/sampler/lesson5.html

http://www.discoverseaz.com/History/Archaic.html

Mammoths & Mastodons:

http://www.ucmp.berkeley.edu/mammal/mammoth/about_mammoths.html

http://www.unmuseum.org/mastodon.htm

http://www.sfu.ca/archaeology/museum/mammoths/mam&mast.htm

http://www.athropolis.com/links/iceage.htm

Early Tools and Techniques: The Atlatl & The Hunt

http://www.atlatl.com/

http://www.onagocag.com/admech.html

http://en.wikipedia.org/wiki/Atlatl

http://www.si.edu/resource/faq/nmnh/origin.htm

http://www.kshs.org/teachers/trunks/archeo.htm