The OBO Foundry is a collaborative experiment involving developers of science-based ontologies who are establishing a set of principles for ontology development with the goal of creating a suite of orthogonal interoperable reference ontologies in the biomedical domain. The groups developing ontologies who have expressed an interest in this goal are listed below, followed by other relevant efforts in this domain.
In addition to a listing of OBO ontologies, this site also provides a statement of the OBO Foundry principles, discussion fora, technical infrastructure, and other services to facilitate ontology development.
M. Dittenbach, H. Berger, and D. Merll. APCCM '04: Proceedings of the first Asian-Pacific conference on Conceptual modelling, page 91--100. Darlinghurst, Australia, Australia, Australian Computer Society, Inc., (2004)