Freeconomy

Another site I came across. I'll let them explain in their own words:

Freeconomy is about sharing the skills you've learnt throughout your life and learning those you haven't. It's about helping others and providing an opportunity for others to help you. Freeconomy allows people to make the transition from a money based communityless society to more of a community based moneyless society, and to share the land they don't need or can't use to facilitate a local food community.