KR, Inc.
- http://www.kr.org
- Charitable organization concerned with fostering research and communication on knowledge representation and reasoning. Features conferences, educational materials and mailing lists.
Tockit Project
- http://tockit.sourceforge.net/
- Aims to create a framework for conceptual knowledge processing in terms of social structures and a common code base. Features software description and contact details.
WebKB
- http://meganesia.int.gu.edu.au/~phmartin/WebKB/
- A set of tools using Conceptual Graphs formalism for building and documentation of knowledge bases, indexing or connecting elements of WWW-accessible documents.