Public datasets are accumulating

• IgentaConnect bibliographic metadata storage: over 200 million triplets

• RDFS/OWL Representation of WordNet: also downloadable as 150MB of RDF/XML

• “Département/canton/commune” structure of France published by the French Statistical Institute

• Geonames Ontology and Data: 6 million (and growing) geographical features

• “dbpedia”: infobox data of Wikipedia into RDF

• Note the “Billion Triple Challenge 2008”!