Because more and more knowledge becomes available in digital form, is essential to disclose digitally available knowledge in an easy way to students and staff. To allow easy access to both digital information as information on paper TU Delft Library has developed Virtual Knowledge Centres (VKCs). On faculty level this integration is realised in the StuDoc, the Study and Documentation Centre CiTG. In the physical space of the StuDoc one can find study facilities and information on paper is accessible (like books, magazines, journals, lecture notes, etc.). The virtual StuDoc gives access to all relevant digital resources, both from inside TU Delft (like theses and dissertations) as well as from outside (e.g. reports from Rijkswaterstaat or the US Army Corps of Engineers).