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The Semantic Web is the extension of the World Wide Web that enables people to share content beyond the boundaries of applications and websites. It has been described in rather different ways: as a utopic vision, as a web of data, or merely as a natural paradigm shift in our daily use of the Web. Most of all, the Semantic Web has inspired and engaged many people to create innovative semantic technologies and applications. semanticweb.org is the common platform for this community.

You can extend semanticweb.org. Make sure that your favourite semantic tool, event, or ontology is here!

KR 2010 (Toronto, 9 May 2010), ESWC2010 (Heraklion, 30 May 2010, subevents: AI Mashup Challenge 2010, IRMLeS 2010, LUPAS2010, ORES2010, SFSW2010, SPOT2010, SemWiki2010), AAAI2010 (Atlanta, 11 July 2010), ICCS2010 (Kuching, 26 July 2010), ECAI2010 (Lisbon, 16 August 2010)  view all events …

The following Semantic Web tools have been recently released: RDF.rb (Version 0.1.0, 10 March 2010), Sapience (10 March 2010), Semantic MediaWiki (Version 1.5.0, 7 March 2010), HyperTwitter (Version 0.9, 23 February 2010), RDF2Go (Version 4.7.3, 5 February 2010) view all tools …

• Oct 27 2009. OWL 2, the new version of the Web Ontology Language, becomes a W3C Recommendation. The OWL 2 Overview and OWL 2 Primer provide an overview and introduction to the 13 individual documents of the new standard.
• Jul 3 2009. The RIF Working Group publishes six new last call working drafts for the Rule Interchange Format (RIF).
• Jun 11 2009. UK Government moves to put semantic data on the web.
• Apr 21 2009. The W3C OWL Working Group has published new "Last Call" Working Drafts for OWL 2, a compatible extension of OWL 1. The OWL 2 Overview document provides an overview of the 13 individual documents.
• Feb 05 2009. The CEL reasoner for the OWL 2 profile EL is now available as open source.
• older news …