This website will link you up to a Yahoo!Group that is in your area. It is all local people who list items that they are giving away for free. People can also post if you want/need an item and other readers may respond if they have the item sought.
It's not bad if you don't mind picking up something from someone else in your community. I've gotten some nice stuff here and am planning on listing a few things as available when I move in a few months.
This is the description from their website:
Welcome! The Freecycle Network™ is made up of 4,775 groups with 7,090,000 members across the globe. It's a grassroots and entirely nonprofit movement of people who are giving (& getting) stuff for free in their own towns. It's all about reuse and keeping good stuff out of landfills. Each local group is moderated by a local volunteer (them's good people). Membership is free.