A portal for various Local Economic Trading Systems (Over 1500 in 39 different countries). Huge website, but a bit difficult to navigate through. Lists different ‘barter’ and ‘exchange’ communities and systems. The section “All About LETS” is a good source of information.
Lets have sprung up all over the the world. See "international directory."
A LETSystem is a locally initiated, democratically organised, not-for-profit community enterprise which provides a community information service and records transactions of members exchanging goods and services by using the currency of locally created LETS Credits. The LETS Credit currency does not involve coins, paper money or tokens of any kind but rather acts as a scoring system, keeping track of the value of individual members' transactions within the system. It is simply a community information system attached to its own market-place. Different LETSystems call their LETS Credits by different names, adding a "local flavour". LETSystems helps develop and free local markets by operating like a community bank, in which members open an account. Unlike a bank, however, it gives unlimited interest-free credit, generated at the point of sale, to facilitate trading with other members. In this way, LETS acts like a supplementary currency, creating an additional system of value in a community. By supplementing conventional cash flow with a local currency, a community can maintain full employment, and protect itself from changes and fluctuations in the money supply. (20 most asked questions about lets " from lets-linkup website)
Reformist--creation of economic alternatives.
James Taris
Non-violent, branded (memebership/registration fees are requires to start up a LETS), aimed at creating economic alternatives.
Here’s a link to a few Canadian LETS: http://www.lets-linkup.com/77-Canada.htm
Here’s an article worth looking at. It by James Taris and it’s called “LETS Online: An Observations of LETS and its Presence on the Internet”
http://www.lets-linkup.com/LETS%20Online.htm
That said, james taris does appear to be a bit of a "tony robbins" of the lets-set. I'm a bit cautious of his cult of personality.