Are you responsible for content management of parts of the Institute's website? We are here for you! Are you looking for general information? You might want to take a look at the website of the Zentrum für Informationsverarbeitung (ZIV) first:
basic info regarding the wWeb Content Management System Imperia can be found here [DE].
more detailed information (such as documentation, courses, web layout, etc.) can be found here [DE].