Web Intelligence deals with intelligent methods and information & communication technologies that are integrated to enhance different web-based applications. Communities are popular, particularly on the World Wide Web, as a means for like-minded individuals to pursue common goals. Communities appear as a first-class object in the areas of web intelligence and agent technologies, as well as a crucial crossroads of several subdomains (i.e. user modelling, protocols, data management, data mining, content modelling, etc.). These sub-domains impact the nature of the communities and the applications which are related to them. In this editorial, the use of Web Intelligence and communities is discussed together with ways in which a wide range of research is benefiting this area for the long-term. Also the WI&C workshop's goal and structure are introduced.