In an August 19th interview with Jon Udell, David Huynh of Freebase (and formerly of MIT’s Project Simile) introduced his Freebase demo by describing a hypothetical query to a database asking for presidents’ ages when they are inaugurated and whether there’s a trend that we’re getting younger presidents. Jon replies:

DBpedia, as its home page tells us, “is a community effort to extract structured information from Wikipedia and to make this information available on the Web.” That’s “available” in the sense of available as data to programs that read and process it, because the data was already available to eyeballs on Wikipedia. This availability is a big deal to the semantic web community because it’s a huge amount of valuable (and often, fun) information that the public…