In the narrower sense electronic commerce (commonly known as e-commerce) means the buying and selling of information, products and services by using the internet. In the broader sense it includes any kind of trading activities, based on the electronic transfer and information exchange. The e-commerce pervades the business focus of the business to business (B2B), business to consumer (B2C) and the intra-business(B2E) (see http://en.wikipedia.org/wiki/Business-to-employee).