Toughts on Commercial Credit Circuits?

What are your guys thoughts on Bernard Lietaer?. Who promotes the idea of Commercial Credit Circuits (C3) which basically boils down to a Trade Exchange… similar to “Barter Card” etc.  ~ A privately run local monetary system operating within a national monetary system using barter dollars or brownie points to record who owes who what.

Some info from his website etc:

http://www.lietaer.com/2010/05/is-our-monetary-structure-a-systemic-cause-for-financial-instability-evidence-and-remedies-from-nature-april-2010/

http://www.lietaer.com/2010/01/naturalsavings/