Then arrives the web 2.0, with the emergence and proliferation of social networks and all the applications as blogs, forums and podcasts, that made possible new forms of participative communication. Indeed, because of the development of these new instruments, users started to communicate among them and share contents through the web, helping to generate the content itself. From a passive actor the user becomes the lead in the creation and management of online contents, by building new processes and dynamics in what we can also call collaborative web.
Here we come to the third stage, web 3.0. They called like that for the first time in 2006, and it is characterized more by a series of factors than by a particular technology. The watchword is connection.