Mike Bergman, who delivered one of the keynotes at this year’s Dublin Core conference, offers an interesting view of the current state of linked data in an interview for http://semanticweb.com/ (semantic interoperability being one of his main concerns). He raises one point that has been in the back of my mind for quite a while – what is the actual usage of linked data? More specifically, what is being done with the bibliographic datasets released by a number of libraries (CERN leading the way) this year? I’m not aware of mashups or other applications that have been developed using open library data (if they exist, I’d be curious to hear about them). What does that tell us about LOD in the library domain? Granted, it might take some time to gain traction and to convert the data into a friendlier format, yet I can’t help but wonder about the substantial and practical benefit so far.