On slashdot recently appeared an interesting news for researcher and fun of Semantic Web:
http://slashdot.org/articles/08/02/10/2041235.shtml
Reuters just opened access to their corporate semantic technology crown jewels. For free. For anyone. Their Calais API lets you turn unstructured text into a formal RDF graph in about one second .
People testing it report to be impressively effective. I haven’t tested myself yet, but i plan to do it. And i will keep you posted on this.