E-commerce is basically electronic commerce, it deals with buying or selling of products or services over the Internet. This technology has made trade easier and smoother in manifold. For transactions World Wide Web is used in this modern technology at least at some point besides other technologies like e-mail is also used. Variety of trade is conducted in this manner like supply chain management, inventory management systems, electronic data interchange (EDI), internet marketing, automated data collection system, online transaction processing etc. Online retail is known as e-tail and the retailers are known as e-tailers. Electronic commerce that is carried out between business parties is known as Bussiness-to-business or B2B. B2B may be limiter to some specific business parties or pre-qualified members or open to all the parties who are interested in trade.