We (Macmillan Science and Education) have made efforts to begin linking our domain models to external datasets. Our article-types, journals and subjects models are now linked to DBpedia (Wikipedia) and Wikidata. Our subjects model is additionally linked to Bio2RDF and MeSH.
Also, our core model is now linked to a number of other external models (CIDOC, FaBIO, schema.org, etc.).
Our models, now including these links, are available to view or download at nature.com/ontologies.
We will continue to refine and expand these links and would be interested in any thoughts, ideas and feedback from the community, particularly around any additional datasets we should consider linking to.