OWL-S Editor and Portege

• Service description, modeling and composition language : OWL-S. 
• Porrege Ontology Tool (working V 3.2.1) and OWL-S Editor
• (Note that: Later versions of the Portege looks like incompatible with OWL-S Editor. Install only vasic version of Portege – OWL plugin – instead of full version)

Building a semantic web site

>> @ XML.com on How to build a semantic web site

ITworld.com – The future of the Web as seen by its creator

>> This is an interview with Tim Berners-Lee in which he talks about the Semantic Web, Web 2.0 and Web 3.0