One thing you realize pretty quickly is that it is very hard to work with Linked Data and just confine one’s explorations to a single site or data set. The links inevitably lead you on a pilgrimage from one data set to another and another. In the case of the WorldCat Discovery API, my pilgrimage led me from WorldCat to id.loc.gov, FAST and VIAF and from VIAF on to dbpedia. Dbpedia is an amazingly fun data set to play with. Using it to provide additional richness and context to the discovery experience has been enlightening.