Tracy from Eco Street brought this website to my attention:
Freeconomy allows people to make the transition from a money based communityless society to more of a community based moneyless society
Sounds very interesting. You can sign up for skillshare, toolshare, spaceshare and landshare. It seems to be a bit like an extension of Freecycle, but instead of offering unwanted used goods for free, people can offer to share their skills, tools, space or land for free.