Barter and Trade
Trade and Barter Your Stuff
Claz.org - Search classified ads and find places to add your own.
Swap - Get rid of stuff you don't want, and exchange it for something you do.
Zamzata - Get something you want, for something you have.
IMS Barter - Businesses could find several benefits from using this barter network.
Craigslist - Find a job, sell your stuff, rent out a room in your house or find a unique opportunity and more here.
Friendly Favor - Use FriendlyFavor to discover how you and your friends could help each other.
Trade Away - Trade, buy or sell anything.
Phone Service
CellSwapper - Swap out of your phone contract.