Links

Biomedical Ontologies:

Ontologies in OBO Foundry: http://www.obofoundry.org

OBI: Ontology for Biomedical Investigations: http://obi-ontology.org

VO: Vaccine Ontology: http://www.violinet.org/vaccineontology

Tools:

Protege ontology editor: http://protege.stanford.edu/

NCBO BioPortal: http://bioportal.bioontology.org/

Linked Data Browsers: http://en.wikipedia.org/wiki/Linked_Data#Browsers