When Eleanor Uhlinger, director of the Dudley Knox Library, came to the NPS in March 2006, the Library did not have a link resolver.  From her previous library experience, Uhlinger was aware of the valuable services that a link resolver could provide. Thus, one of her first priorities was to acquire an OpenURL link resolver for Dudley Knox Library. 

Eastern Kentucky University Libraries made new advances in navigating the world of electronic resources by purchasing the Ex Libris SFX link resolver in 2003. A few years later, in 2006, EKU again broke new ground by moving from hosting SFX independently to engaging Ex Libris to host the SFX services remotely as an application service provider (ASP).