Freecycle is an organization dedicated to giving away free things. Basically, they have a mailing list you post to, and people can respond and either pick up the item or you deliver it to them (your choice). The idea is to avoid waste in the landfills and to give people free stuff.
Personally, I think it's a great idea! I'm moving next month, and I have all kinds of stuff I don't want to move (TVs, foosball table, stuff like that). I tried giving it away in my apartment, with no dice. Then I posted to Freecycle Winnipeg, and within 5 minutes I'd given away both TVs.