Semantic Web research is interdisciplinary in nature. Indeed, progress towards the Semantic Web vision requires the incorporation of fundamental state-of-the-art and future developments from many domains including Computer & Information Science, Cognitive Science, Geographic Information Science, the social sciences, and many more. To establish bridges between these domains, it is thus important to demonstrate what and how they contribute to the Semantic Web vision, and what the Semantic Web can offer in return to these disciplines.