Reservation Schemes for Grid Markets.- A Computational Trust Model for E-Commerce Systems.- A Recommender for Active Preference Estimate.- An MDA Based Environment for Modelling and Executing Business Negotiations.- Analysing Requirements for Virtual Business Alliances - The Case of SPIKE.- Business Impact of Online Institutional Recommendation.- uCard: A Novel Privacy Friendly Radio Frequency Tag Architecture for Universal Loyalty Card.- VERTIGO: Find, Enjoy and Share Media Trails across Physical and Social Contexts.- WOICE: A Decentralized System for Ubiquitous VoIP Services.- Monitoring Ecosystem Characteristics on Negotiation Environments.- Incentives, Business Model and Required Technical Infrastructure for the Economic Aware Data Grid.- The Incoming Trends of End-User Driven Service Creation.- The New Way to Think Television on the Web.- The Wisdom of Sustainable Communities in the Digital Era: The Case of Efficient Energy Management.- P2P Business and Legal Models for Increasing Accessibility to Popular Culture.- Disruption of the Digital Media Distribution.- Evolutionary and Pervasive Services.- Future Internet Markets and Business Strategies: An Analysis and a Proposal.- Impact of Microfinance Operations on the Livelihood of the Clients: A Review of the Existing Literature.- Combining Organisational and Coordination Theory with Model Driven Approaches to Develop Dynamic, Flexible, Distributed Business Systems.