Linked Data is the big initiative: http://linkeddata.org/ http://linkeddata.org/ With Sparql, you've got an excellent query language. Here's a cool app someon

Linked Data is the big initiative: http://linkeddata.org/ http://linkeddata.org/ With Sparql, you've got an excellent query language. Here's a cool app someone made last week: http://lamboratory.com/blog/2010/08/25/a-linked-data-movie-quiz-the-answers-are-out-there-and-so-are-the-questions/ http://lamboratory.com/blog/2010/08/25/a-linked-data-movie-q... It generates a movie quiz based off the linked data cloud. Also, there is a huge amount of work in the life sciences that uses RDF.