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CPAN-Data (Ontologi.es)
Comprehensive Perl Archive Network - DOAP data -
Linked Open Vocabularies (LOV)
The LOV dataset contains the description of RDFS vocabularies or OWL ontologies defined for and used by datasets in the Linked Data Cloud. Whenever available each vocabulary... -
Revyu.com - Review Anything
Universal review site. RDF-based API, SPARQL endpoint. -
Linked User Feedback
The Linked User Feedback (LUF) dataset contains user-generated feedback in the form of ratings, comments and taggings, which are gathered via an API that third party...