Visualization and User Control of Recommender Systems -- Crowdsourcing and Knowledge Co-creation in Virtual Museums -- Using real-time gaze sharing methods to enhance collaboration -- Evaluating Anchored Discussion to Foster Creativity in Online Collaboration.-Measuring the effort demanded by CSCL design processes supporting a consistent artifact flow.-Supporting Collaborative Decision Making in Geo-collaboration Scenarios -- Analysis of Question and Answering Behavior in Question Routing Services -- An Integrative Tool Chain for Collaborative Virtual Museums in Immersive Virtual Environments -- A Behaviour Awareness Mechanism to Support Collaborative Learning -- Exploiting the use of wikis to support collaborative writing: a case study of an undergraduate Computer Science class -- Where to begin? Using Network Analytics for the Recommendation of Scientific Papers -- Every answer has a question: exploring communication and knowledge exchange in MOOCs through learning analytics -- Dynamic Credibility Threshold Assignment in Trust and Reputation Mechanisms Using PID Controller -- XCuteKIP: Support for Knowledge Intensive Process Activities -- BESIDE: Immersive System to Enhance Learning within a Museum -- Secure Collaboration in Public Cloud Storages -- Sketchpad: A learning tool supporting creativity in collaborative learning activities -- A Subscription Overlay Network for Large-Scale and Efficient File.-Parallel Downloading -- Synchronizing Dining Progress in Video-Mediated Time-shifted Table Talk Induces More Engagement -- Contrasting People's Attitudes towards Self-disclosure in Online Social Networks and Face-to-face Settings.