University of Delaware has rolled out a campus map that is based on
OpenStreetMap.
This is a Featured image, which means that it has been identified as
one of the best examples of OpenStreetMap mapping, or that it provides
a useful illustration of the OpenStreetMap project.
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One of the three biggest universities in Norway has been using OSM for a while now: http://www.ntnu.no/kart/They had a competition where people would contribute map data about the campuses to OSM, and then there was a winner who received a GPS device: http://www.ime.ntnu.no/beta/2009/10/bidra-og-vinn-gavekort-pa-3000-kr/