There is an enormous body of open photographs contributed by a myriad of libraries and museums to flickr. Is anyone aware of any efforts to associate machine tags with these photos, for example to georeference with geonames machine tags, tag people with VIAF ids, or categorize with LCSH ids? A quick Google search turns up nothing. There's a little bit of this going on with Pleiades ids for ancient geography ( http://www.flickr.com/photos/tags/pleiades%3A*/), but there's enormous potential in library-produced images. I think it would be incredibly powerful to aggregate images of manuscripts created by Thomas Jefferson (VIAF id: 41866059) across institutions that have digitized and uploaded them to flickr. Ethan