Barter Exchanges. Bartering is the trading of one product or service for another. https://www.irs.gov/forms-pubs/about-form-1099-b
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Barter system for business and individual accounts located in Scotland. http://www.tbex.com
an all-in-one market-place and meeting-place that allows individuals and organisations to buy, sell, swap and meet within trusted communities. http://www.swapace.com/
Arizona trade exchange with online marketplace. http://www.tradesource.us
helps businesses increase sales, build customer loyalty, and tap into new markets http://bbubarter.com