One of the most frequent technological opportunities of the forthcoming years will be the hosting of corporate information in cloud environments (storing and accessing data and applications on the Internet). The development of the eBook as an increasingly popular consumer option is in keeping with this situation in which market movements make us aware of the quest for favourable positioning both of the cultural industries and of other companies that have been unimportant in the sector up to now, such as bookshops, mobile telephony and technological companies, and even global operators such as Google, each of which have been involved in cut- throat competition to control the market. An analysis is carried out of eBook business movements, which also involve a complex network that brings together market strategies, owner systems, on- line distribution and sales platforms, and also aspects of reading habits and consumption. Although the eBook market is insignificant in some countries, the opposite is true in a global context and in particular in more advanced societies such as that of the United States where several million eBooks have already been sold. Companies in this field are not only concentrating on the sale of reading devices, or even merely the sale of contents; their strategy is both global and vertical and is based on scale economies, and their objective is to monopolise each and every one of the links of the publishing chain.