•B2B – Business to Business
–Companies sell their online goods to other companieswithout being engaged in sales to consumers.
•B2C – Business to Consumer
–Companies sell their online goods to consumers who are theend users of their products or services. Usually, web shopshave an open access for any visitor.
•C2C – Consumer to Consumer
–Consumers sell their online goods to other consumers. Awell-known example is eBay.
•C2B – Consumer to Business
–Consumer posts a needed product or service and companiespost bids. Consumer then reviews bids and selects acompany.