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Debian Package Tracking System
Data on all Debian packages is available as RDF via content negotiation from the Debian QA website. This uses the ADMS.SW standard. More background in this blog post. -
Open Library
About One web page for every book ever published. It's a lofty, but achievable, goal. To build it, we need hundreds of millions of book records, a brand new database... -
FAO geopolitical ontology
The FAO geopolitical ontology provides a master reference for geopolitical information, as it manages names in multiple languages (English, French, Spanish, Arabic, Chinese,... -
LinkedMarkMail
LinkedMarkMail is a simple Linked Data interface for accessing the MarkMail archives.