New AWS Public Data Sets - Economics, DBpedia, Freebase, and Wikipedia (aws.typepad.com)

most of it seems to be pretty useless, but there is quiet a bit of good stuff too

If like me you're wondering how you could use some of the new datasets, here are some pointers:

http://www.freebase.com/view/freebase/featured_application

http://wiki.dbpedia.org/UseCases

Highlight: Powerset - semantic wikipedia/freebase search acquired by MSFT for $100mm