Internet, like all the things, evolves. The Web is not the same nowadays that in the last years of Century XX. As much it is thus, that it has gotten to be the main center of the greatest companies of the computer science area. Internet is like a trunk bottomless that never we could be safe to know in its fullness. It is, without doubt, the invention that characterizes our historical moment. We are in which many call the second computer science revolution. First it had representatives of the stature of Microsoft and Apple who fought by the creation of more modern operating systems and applications that allowed to extend the use of computers in the greater possible number of activities. The objective was fulfilled perfectly

and the computer science market I end up including to all the productive processes and until it entered a number never imagined of homes. Nowadays, nevertheless, we are living one second revolution. The energies no longer are concentrated in training new followers to computer science but in communicating them of new and original ways, in shortening the distances and harnessing the work in equipment, having tools that allow to increase the productivity of a mass of workers, or establishing bows in a community that shares tastes and I interest very particular. That is the concept of Web 2,0, a new version of the Internet in which the user stops being a passive object and happens to become subject assets, that participate, creates and spreads contents, that think and protagonist becomes. No longer it is an individual that adapts but one to that the companies must adapt. This way, infinite doors are abren to the businesses. Mechanisms as the one of the contextual publicity allows to generate million dollars from the traffic generated by the sites and communities. The services that the user looks for so are varied as I interest can have in the world. There are no limits when the market to which we aspired is the entire world. When we happened from the premises to the global thing the yield concept disfigures and no longer it is so simple to think about the conditions of our business at the time of elaborating our expectations. Speed, continuous innovation, overall nature and abundance is the main characteristics of the new models of business to which Web 2,0 abre its doors to us and it invites to participate to us.