The Web evolves in many distinct ways: ιt grows daily, it revolutionizes information circulation, it disseminates knowledge, it demands on the spot data management. Its role for people shifts gradually from that of a huge information source to that of a social environment. The topics discussed by people, the products preferred by them and the social networks to which they participate are also subject to constant change, as proven from the fast emergence of the Web 2.0 technologies. This workshop is devoted to methods, techniques and practices for analyzing evolution in the Web.