The University of Hull has done a lot of work in recent years looking at 'e-services integration' across academic services. This work can be tracked in its presentation pages.
The most recent presentation [pdf] is from the Sakai conference, December 2004, which focuses on the use of u-Portal and high-level service architectures.
They support the general emergent pattern, which sees recombinance of finer grained service elements across library, learning and admininistrative environments. Of course, this is something that is yet only intermittently supported in our applications.
They also promise the results of a university survey of what search tools are used and where in January 2005, which is something to look out for.