Digital information, can be transformed into new social and economic values, creating huge opportunities for developing new products and services. Information is the key resource and input for the digital economy. Thus, computerized information systems enable companies to achieve a large number of transactions, while ensuring control and permanent reduction in errors. The book is divided into two major parts, a first part which contains two chapters which approach the theoretical concepts of electronic business and how to implement them, and the second part is a practical, and considers the concrete method of development of the internet business, it is a condition for any firm of the new millennium. Digital integration both inside and outside the company, from filing to leadership, from the supplier to the customer, determines the change in the way we organize and run a business. These changes lead to digital firms, where all internal business processes and the company's relationship with customers and suppliers are based on digital technology.