Discussion of the promise and problems of classification systems created by nonprofessionals.
Comprehensive collection of links maintained by Barry Smith, on the philosophy faculty at State University of New York at Buffalo.
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.
Very large site comprising six papers by mathematician John F. Sowa of Harvard and MIT, each with summary introductory paragraph followed by numbered topic headings hyperlinked to detailed articles. Exhaustive summary bibliography.
Hundreds of annotated, alphabetically sorted links to ongoing work by members of the Knowledge Systems Research Group, part of the Artificial Intelligence Lab at the University of Texas at Austin.
Large Scale Distributed Information Systems lab at the University of Georgia lists ongoing projects such as Sensor Map, BioInformatics for Glycan Expression, and a number of semantic discovery projects.
Three-year European collaboration discussing knowledge management methods based on ontology sharing and reuse, with successive papers and a book on the semantic web published in 2002.
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.
Paper by Deborah L. McGuinness discussing ontologies and requirements for their effective use on the web. [2002]
A topic-map driven portal focused on application of ontologies and similar technologies to educational domains.
Overview of methodologies, papers and people.
Research report by INRIA, presenting the state of the art of engineering techniques and a project description. (downloadable PDF)
Clay Shirky explores online categorization, contrasting ontologies with folksonomies.
Semantic web experiment and ontology mashup maintained by David Decraene.
The community site for Ontoweb, a European Union founded project about Ontology-based information exchange for knowledge management and electronic commerce.
Detailed description of the OWL W3C specification.
Mailing list archive. Some basic definitions by John Sowa.
Short and long answers from Tom Gruber of Knowledge Systems Lab at Stanford University.
A project aiming at large-scale deployment of ontologies as the foundation for the Semantic Web.