Datasets - Mannheim Linked Data Catalog

W3C
- example/rdf+xml
Semantic Web Dog Food Corpus

About Data exposed: Metadata (papers, presentations, people) for several semantic web related conferences and workshops, including the most recent ISWC, ESWC and WWW events....
- api/sparql
- example/rdf+xml

You can also access this registry using the API (see API Docs).