breadhours
This is kind of a neato concept - Breadhours:
A group of over 300 residents and merchants in California’s Bay Area has established a local currency called BREAD (a rough acronym for Bay Area Regional Exchange and Development), based on hours of work valued at $12 an hour. Through the BREAD network, which now has over $20,000 worth of currency in circulation, members can pay for dinner, carpentry, childcare, tutoring, clerical assistance or organic produce. Tired of traditional activism, founder Miyoko Sakashita wanted to create a positive local economy and "stop our resources from supporting global corporations that are not accountable to people and the environment."
[via metafilter because I had their newsfeed up earlier]