See also
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=114x62763 for article from USA Today.
"The Piedmont Local EcoNomy Tender (PLENTY) is a new kind of local money.... Members of NCPlenty agree to accept PLENTYs as full or partial payment for goods or services they provide. Membership is open to any member of our community who wants to offer time, skills, or products in exchange for PLENTYs. The keystone of a local currency is the network of participants willing to trade the currency, so the more folks who agree to accept the PLENTY, the greater the positive impact upon the community."
http://www.ncplenty.org/faq.php