* ruby-rdf Very timely. "A project to advance ruby in the semantic web realm. Specifically, this will be an attempt to port the Redland RDF framework to ruby in an object oriented manner."
* ROWL "The system enables users to frame rules in RDF/XML syntax using an ontology in OWL. Using XSLT stylesheets, the rules in RDF/XML are transformed into forward-chaining defrules in JESS. We make use of two more stylesheets to transform ontology and instance files into Jess undordered facts..."