FramerD (Popularity: )
http://www.framerd.org/ A portable distributed object-oriented database designed to support the maintenance and sharing of knowledge bases.
XMaster (Popularity: )
http://www.chrisnaylor.co.uk/ Information on a Windows expert system shell. Includes product descriptions and pricing and contact information.
DAA Solutions (Popularity: )
http://www.daasolutions.com Software company providing KBE capabilities for companies with products requiring custom design as an integral part of their sales process.
Project Halo (Popularity: )
http://www.projecthalo.com A research effort towards the development of Digital Aristotle, an inference-based question answering system.