The major business models used in B2B includes the following:- 1. E-distributor - that supplies products directly to individual business 2. E-procurement - individual firms create digital markets for thousand of sellers and buyers 3. Exchange - independently owned digital market place for digital inputs, usually for a vertical industry group 4. Industry consortium - industry owned vertical digital market 5. Private industrial network - industry owned private industrial network that coordinates supply chains with a limited set of partners The major business models used in B2C includes the following- 1. Portal- offers