The Data & Knowledge Management research field comprises a range of practices used inside an organization (such as an enterprise, an interest group, or the entire web) to create, represent, share and make available knowledge and data, which are relevant for pursuing the organization\'s goals. It is an interdisciplinary research field on the border between computer science, sociology, economics, and mathematics. We contribute to the above research agenda by developing: methodologies and tools to support the elicitation of knowledge and its encoding in computer interpretable formats; logical formalisms for knowledge representation and reasoning; frameworks and tools for the integration of data and knowledge sources; and efficient and scalable services for the management of large, distributed, and modular knowledge