University of Wisconsin
The Why Files: Amblin' to Alaska
A look at the new methods of dating the Bering Strait land bridge and the subsequent implications to the peopling of Americas' theories.
Other
Phmc: Paleoindian Period: 16,000 to 10,000 Years Ago
A good description of the theories behind the various migration routes into the Americas, the evidence for pre-Clovis culture in the eastern part of America, and a discussion of the paleoindian sites particularly in Pennsylviania.
BBC
Bbc: North America's First People
Easy-to-understand explanations for the theories revolving around first Americans. Each theory: Clovis First and Pacific Coast Route, is explained as well as the basis for the debate.
University of California
Beringia Chronology: Prehistoric Beringia
Extensive coverage of the prehistoric era where groups settled into the region called Beringia from the Bering Land Bridge that once connected North America and Asia. Provides information about various groups, where they settled, and...