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Discussion of the promise and problems of classification systems created by nonprofessionals.
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Large collection of links and papers about Contemporary Ontology, History of Ontology and Ontological Engineering. From the Department of Philosophy, State University of New York.
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Collaborative Open Ontology Development Environment is a project led by the Medical Informatics Group at the University of Manchester.
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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.
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A catalog of links to projects, tools, and events.
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Detailed description of the OWL W3C specification.
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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.
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Ontolog is an open, international, virtual community devoted to advancing the field of ontological engineering and semantic technologies, and advocating their adoption into mainstream applications and international standards.
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Paper by Deborah L. McGuinness discussing ontologies and requirements for their effective use on the web. [2002]
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A topic-map driven portal focused on application of ontologies and similar technologies to educational domains.
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Overview of methodologies, papers and people.
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Research report by INRIA, presenting the state of the art of engineering techniques and a project description. (downloadable PDF)
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Clay Shirky explores online categorization, contrasting ontologies with folksonomies.
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The community site for Ontoweb, a European Union founded project about Ontology-based information exchange for knowledge management and electronic commerce.
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Mailing list archive. Some basic definitions by John Sowa.
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A project aiming at large-scale deployment of ontologies as the foundation for the Semantic Web.
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A weblog about social tagging.
