This is a group that I joined a few weeks ago and it is an awesome group. You can give away your stuff (working or not working) to someone who will take it off your hands, it doesn't get thrown out into the landfill. The rules? You pick it up, no trade, has to be free. I had heard some scary things like people who were playing games with people. But generally, it's a pretty straight forward group and I have had some great responses.
Check out the link: http://www.freecycle.org/
My yahoo group: http://groups.yahoo.com/group/vancouverfreecycle/