ReadWriteEnterprise

Today, Yahoo posted on their developer network blog an announcement of a new content analysis API. Its aim is to rank content by overall relevance, point to particular Wikipedia pages and annotate the results with extensive meta-data. The service is available as a Yahoo Query Language (YQL) table and more information can be found here. You can try out a sample query request and see the XML code that is returned in response, as well as documentation for the particular fields that are part of the interface.