Las Vegas Peace and Justice Center, a Las-Vegas based, non-profit social action organization founded and run by local social justice activist Pat Leahan. Mission: "To promote non-violent solutions to conflicts and social injustices which have been identified by the community as priorities."
The Las Vegas Issues Forum is an e-mail discussion list formed "to provide a safe, open, online space for the discussion of issues that matter in Las Vegas and surrounding communities." Open to anyone in the Las Vegas area in the northeastern New Mexico highlands.
History and Philosophy of Barter Systems
"Groups stem the flight of capital from their towns
and help small businesses through local currencies."
Dave Block
Local Money Strengthens Communities, an excellent article on the evolution of local currencies by Dave Block. Lots of interesting historical examples of local currencies.
Here's an almost-encyclopedic, up-to-date bibliography on Community Currencies. An interesting site to explore.
An article about the Ecosimia (a Spanish acronym for Ecology is My Responsibility) project, describing origins of a now-extensive L.E.T.S. system in Ecuador.