The National Service-Learning Clearinghouse had a web and library taxonomy that was based loosely on the ERIC Thesaurus, developed organically, and somewhat haphazardly, over time.  We recognized multiple short-comings in both the taxonomy itself and the often inconsistent way in which it was applied to the collection as well as our website. After a needs assessment we decided to develop a new taxonomy as part of a larger content management project in order to provide greater ease of use and access to both internal and external users.