More ontologies and rdf datasets are available at the following links:
1. http://rpc295.cs.man.ac.uk:8080/repository/browser (TONES repository)
2. http://www.atl.lmco.com/projects/ontology/i3con.html#Ontologies (I3CON Experiment Ontologies)
3. http://www.obofoundry.org/ (Biomedical ontologies)
4. http://datahub.io/dataset/bluk-bnb (BNB rdf dataset)
5. http://protegewiki.stanford.edu/wiki/Protege_Ontology_Library (Protege Ontology Library)
6. http://ontolog.cim3.net/cgi-bin/wiki.pl?BillHogan (University of Florida Ontology dev. efforts)
7. http://oor.net/ (Open Ontology Repository)
8. http://www.berkeleybop.org/ontologies/doid.owl (Disease Ontology)
9. https://code.google.com/p/cpr-ontology/downloads/list (Computer-based Patient Record Ontology)
SPARQL endpoints:
1. http://sparql.bioontology.org/ (Bioportal dataset) Refer.Paper
2. http://dbpedia.org/sparql (Dbpedia dataset)