As I said earlier, Nico Adams would be blogging about his (impressive) chemical ontology ChemAxiom.
All ontologies are hard. It is difficult to reach a consensus in any domain, and no single person’s or organization’s ontology is likely to carry a community. That is the way to “ontological warfare”. So Nico has made a call for cooperation and has already got an offer from Michel Dumontier, who has also been pioneering this area. That’s the great thing about the web – it identifies potential collaborators within minutes…