When viewing an item generate and display a recommendation list of other items someone could be interested in that is like a virtual browse of related items on shelf but expanded beyond LC classifications to include works from venue (e.g., journal, event), subject, and author relationships (collaborators, co-authors). This could also include links to related researcher profiles as well.
Notes: This depends on mapping relationships to items of similar venue (e.g. same conference, journal), subjects or genres, same authors, by co-authors or collaborators. The subjects and genres are of course standard repository stuff. Having people as objects that then map related collaborators as well as works they have created themselves is the trick. This definitely maps almost exactly to VIVO's use case, but really is a hybrid of what Fedora and VIVO are doing. VIVO could also be a more likely fit to uncover venue information that could then be correlated with intellectual work metadata in a typical Fedora repository.
The mapping of models could certainly reuse same/similar technology strategies outlined here: Sufia - Fedora - VIVO - Blacklight Interoperability (SufIVO/Sufitro)