Electronic Commerce,(electronic marketing) e-commerce,consists of the buying and selling of products or services over electronic systems such as the Internet and other computer networks.Contrary to popular belief, ecommerce is not just on the Web.E-commerce includes electronic trading, electronic messaging, electronic data interchange (EDI), electronic mail (e-mail), electronic catalogues, internet, intranet and extranet services.Online and internet commerce is currently experiencing dramatic growth.Electronic commerce is generally considered to be the sales aspect of e-business. It also consists of the exchange of data to facilitate the financing and payment aspects of the business transactions.