The worldwide Freecycle Network is made up of individual groups across the globe.
It's a grassroots movement of people who are giving stuff for free. Each group is run by local volunteer moderators.
Membership is free.
One rule: everything posted must be free. Whether it's a chair, a fax machine, piano, toys or an old door. Or, maybe you're looking to acquire something yourself? Respond to the posting directly and you just might get it. After that it is up to the giver to set up a time for passing on the treasure.