Rise of Wikidata

In Computing Now.  Introduced to the idea a year ago.  Worth a further look.  Using Wikipedia data for a centralized source of structured public data makes much sense. " ... Wikipedia was recently enhanced by a knowledge base: Wikidata. Thousands of volunteers who collect facts and their sources help grow and maintain Wikidata. Within only a few months, more than 16 million statements about more than 4 million items have been added to the project, ready to support Wikipedia and to enable and enrich many different types of external applications. ... "