- A general purpose data processor written in Python. Core language is RDF, extended to include rules, using RDF/XML or RDF/N3 serializations as required.
- Tools for storage and query of structured data and applications for digital libraries and project management. From the Institute for Learning and Research Technology at the University of Bristol.
- Framework for explaining Semantic Web tasks by storing, exchanging, combining, annotating, comparing and rendering proofs fragments provided by engines embedded in Semantic Web applications.
- Open source ontology management infrastructure. Includes a tool suite allowing easy ontology creation and management, as well as building ontology-based applications.
- A Research Group from University of Innsbruck involved in various projects combining and improving recent trends like Web Services, Semantic Portals and Grid Technology.
- Semantic Hypertext Object Repository. A repository with a free definable meta model where structured documents can be imported after parsing and transforming into XML.
- Survey and analysis of traditional, new, and arising Web standards and how they can be used to represent machine-processable semantics of Web sources.
- A research project focused on design, prototyping and evaluation of a system that supports indexing and querying complex semantic relationships from the Web.
- SEWASIE is a collaboration of a number of research groups aiming to design and implement an advanced search engine accessing heterogeneous data sources on the web, using semantic enrichment to provide the basis of structured secure web-based communication.
- Company that providing consulting and tools for architectural design and implementation of Semantic Technology Solutions with an emphasis on Ontology Engineering.
- URIQA proposes an extension to web architecture used to indicate to a web server that it should resolve the specified URI in terms of knowledge about the resource denoted by that URI rather than in terms of a representation of the resource.
- The W3C Semantic Web Activity has been established to serve a leadership role, in both the design of specifications and the open, collaborative development of technology for the Semantic Web.
- The original design and ultimate destiny of the World Wide Web, by its inventor, Tim Berners-Lee. Features a linked glossary, a time line, errata and an excerpt from Chapter 1.
- Article by Uche Ogbuji discusses the limits of today's Web and the challenge of how agents can infer relationships and act on them. Published in "New Architect" e-zine. (June 1, 2002)
- Discusses the problems with current notions, popularity ranking and collaborative filtering and suggests next steps. By Andy Oram, published in O'Reilly Network. (April 19, 2002)
- Even though the Semantic Web may yet seem a remote dream, there are already tools one can use to make a tiny step forward by building "semantic web sites," which can be much easier to navigate than ordinary sites. (May 2, 2001)