xISBN may have moved on, but we're still working on some new things here in OCLC Research. My latest project is WorldCat Identities. Identities has a summary page for every person (and soon corporate body) based on information gleaned from WorldCat. It has a fuzzy searching module done by Ralph LeVan, Tom Dehn did most of the XSL work, J.D. Shipengrover most of the design, and incorporates lots of comments and suggestions from Eric Childress, Diane Vizine-Goetz and Karen Smith-Yoshimura. Much of the inspiration for the pages comes from FictionFinder, the no-longer-with-us RedLightGreen system that RLG did before our merger, and Janifer Gatenby's idea that a Wiki would be a good complement to the VIAF project.
I haven't been blogging very much the last few months since Identities is about all I could think about and it wasn't ready to show. It's now a lot closer to being ready and the RLG Programs group has started a formal beta test with a great group of libraries (70 contacts at 18 institutions). They have already made some good suggestions (some easier to implement than others, of course).
The cloud at the top of this post is based on the surnames of the most widely held identities in WorldCat. One of the most striking aspects of the cloud is the number of composers that are widely held (about a third of the top 100). This project has been a lot of fun and I think it shows quite well some of the possibilities for the use of library bibliographic data.
Of course, we couldn't stop with just people. Following FictionFinder's example (and some of their regular expressions), fictional/legendary characters (Robin Hood) and famous animals (Secretariat) have their own pages.
Update: I should have mentioned that David Palfrey at the University of Cambridge supplied the Wikipedia links.