Web services and service oriented environments are key enablers for the migration of entertainment, business, sociability, science and health-care from the physical world to the virtual world. The result of this on-going migration is a new place very much different from the physical world, one where interconnected services interact with human users, sensors and embedded devices. Yet for this vision to become reality, trust needs to be addressed as members of the global e-society r- ularly today deal with the question whether they can trust other, unknown parties. Trust is a vital component of...