Free Cycle is a website where people can give or get 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 and membership is free.
You can sign up to receive emails when someone makes a new post. This is a good idea if you are even considering looking for something because then you know immediately when something you can use is listed. If you are like me, I would never remember to check the site each day to look for something. I get the emails and for my area, this means 3 or 4 emails total a week average. I'm sure there are areas that might be much busier.