For those that don't about this project, the general purpose is to provide NYT controlled vocabulary and RDF (under creative commons) for use across the web.
Very semantic webby... with one result the ability to pull together data from different sites, which meets a certain criteria (about the same person, etc.) In the example application, links to Wikipedia articles about a person are also cross referenced to NYT articles about the same person.
As Andy mentioned DBpedia is the shining example (which is a project to semanticize Wikipedia)
For those interested (and who don't already have these in their bookmarks or reader):
NYT project page
Also, this is an interesting site: