Yahoo Placemaker is a new "geo-enrichment" platform. The freely-available API enables developers and publishers to make applications and data sets location-aware by determining the "whereness" of unstructured content (such as blog posts, new articles, feeds, and web pages). To use it, developers specify structured and unstructued content; feeds, web pages, news, status articles, etc. Then Placemaker identifies, disambiguates and extracts places. And finally Placemaker returns geographic metadata, which determines the whereness of structured and unstructured content.
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