Gulching, Barter, Local Currencies

Gulching:

http://en.wikipedia.org/wiki/Gulching (link is external)

http://www.backwoodshome.com/columns/wolfe040515.html (link is external)

http://gulcherslife.blogspot.com/2006/04/gulching-to-become-trendy.html (link is external)

Local Currency:

http://en.wikipedia.org/wiki/Local_currency (link is external)

http://www.utne.com/2004-06-01/LocalCurrenciesArentSmallChange.aspx (link is external)

http://www.dmoz.org/Society/Organizations/Local_Currency_Systems/ (link is external)