Google has acquired Metaweb, which maintains a database of 12 million "entities" (persons, places, or things), and all the different ways they relate and you might refer to them.
Google News info about how they are trying to encourage attribution to syndication sources for republished articles, and the original sources for breaking news, using "metatags" embedded within the HTML of the webpages.
Off-Site Sampling Activities, Carter Carburetor Site, St. Louis ...
The Carter Carburetor Site, a large industrial property at 2800 to 2840 North Spring Street, in north St. Louis, Mo., is a former gas