Group Negotiation and Knowledge Management -- The Gap Between Small Group Theory and Group Support System Research -- Alternative Dispute Resolution Based on the Storytelling Technique -- Fostering Knowledge Exchange in Virtual Communities by Using Agents -- Group Awareness and Social Aspects -- Leveraging Visual Tailoring and Synchronous Awareness in Web-Based Collaborative Systems -- Visualizing Shared-Knowledge Awareness in Collaborative Learning Processes -- An Improved Design and a Case Study of a Social Visualization Encouraging Participation in Online Communities -- Social Theatres: A Web-Based Regulated Social Interaction Environment -- Groupware Design and Development -- The Collaboration Engineering Approach for Designing Collaboration Processes -- A Proposal of Integration of the GUI Development of Groupware Applications into the Software Development Process -- Coordinating Multi-task Environments Through the Methodology of Relations Graph -- Fostering Groupware Tailorability Through Separation of Concerns -- An Approach to the Model-Based Design of Groupware Multi-user Interfaces -- Computer Aided Pattern-Based Collaboration Process Design: A Computer Aided Collaboration Engineering Tool -- Designing Mobile Shared Workspaces for Loosely Coupled Workgroups -- A Decentralized Middleware for Groupware Applications -- Computer Supported Collaborative Learning (CSCL) -- Modelling Shared Knowledge and Shared Knowledge Awareness in CSCL Scenarios Through Automated Argumentation Systems -- Deployment of Ontologies for an Effective Design of Collaborative Learning Scenarios -- Dynamic and Flexible Learning in Distributed and Collaborative Scenarios Using Grid Technologies -- Directions to Acknowledge Learners’ Self-organization in CSCL Macro-scripts -- Groupware Applications and Studies -- Supporting Informal Co-located Collaboration in Hospital Work -- Relating Interactions to Artifacts Through Content Analysis: A Practical Investigation -- Studying the Impact of Personality and Group Formation on Learner Performance -- Transferring a Collaborative Work Practice to Practitioners: A Field Study of the Value Frequency Model for Change-of-Practice -- Groupware Activities and Evaluation -- An Agent-Based Recommender System to Support Collaborative Web Search Based on Shared User Interests -- How to Choose Groupware Tools Considering Stakeholders’ Preferences During Requirements Elicitation? -- Evaluation Methods for Groupware Systems -- Activity-Aware Computing in Mobile Collaborative Working Environments.