Collaborative Open Ontology Development Environment is a project led by the Medical Informatics Group at the University of Manchester.

ECOR represents a new approach in applying ontology to a variety of problems in information science and related areas, by coordinating institutions, organisations and companies working in the field.

A project of the European Information Society Technologies, under 5th Framework Program (1999-2002). The project develops knowledge management methods and tools, based on ontology sharing and reuse.

The community site for Ontoweb, a European Union founded project about Ontology-based information exchange for knowledge management and electronic commerce.