http://freesharing.org/
http://uk.green.yahoo.com/free-is-good/find-a-group.html
http://www.scoodi.com/
http://en.wikipedia.org/wiki/The_Freecycle_Network
http://en.wikipedia.org/wiki/Regiving
http://www.freeswapper.org/
http://www.gigoit.org/index.php