The Avery Trace
This site describes the Avery Trace, also known as the North Carolina Road, which went from NC through north TN to the Cumberland settlements. There is a good description of it and a link to a nice map of the old road.
http://www.wwns.com/clay/tourism/avery/avery.html
The Great Warrior Path from East Tennessee to Southwest Virginia
A nice description of this road, which some of the earliest settlers used.
http://www.tngenweb.usit.com/warpath.htm
Transportation in Early Middle Tennessee
This article mentions a number of the early roads and something about the early settlement of the area.
http://www.tngenweb.usit.com/sumner/mdtntran.htm
Ohio Migration Routes:
This site is a map site of several of the land migration routes through Ohio...the northern ones are a little north for most of our southern migrations, but the southern ones were often used by people going into KY and places south...
http://www.infinet.com/~dzimmerm/Gwen/migration.htm
Migration Routes from Pennsylvania to Virginia
This site seems to be a collection
of messages from a mail list discussing ancestral movements, mainly of
Palantine Germans, but also Scots Irish...it discusses both the How and
Why their folks
moved on.
http://www.indwes.edu/Faculty/bcupp/genes/migrate.htm
Old Roads in North Arkansas
This is an article about early roads in north Arkansas, presented by the Lawrence County Historical Society, written by W.E. McLeod. If you have ancestors who traveled this way, check it out.