In this chapter the authors aim to portray the social aspects of the World Wide Web and the current and emerging trends in “Social Web”. The Social Web (or Web 2.0) is the term that is used frequently to characterize Web sites that feature user provided content as their primary data source and leverage the creation of online communities based on shared interests or other socially driven criteria. The need for adding more meaning and semantics to these social Web sites has been identified and to this end the Semantic Web initiative is described and its methodologies, standards, and architecture are examined in the context of the “Semantic Social Web”. Finally the embellishment of Web Services with semantic annotations and semantic discovery functionality is described and the relevant technologies are explored.
Personal learning environments on the Social Semantic Web