SemRadar is a browser extension which inspects web pages for links to Semantic Web metadata and informs about presence of it by showing an icon in browser's status bar. Currently it supports RDF autodiscovery (SIOC, FOAF, DOAP and any type) and RDFa metadata detection. It pings the detected files to PingTheSemanticWeb.com.
SWAML, pronounced [swæml], is a research project around the semantic web technologies to publish the mailing lists' archives into a RDF format. It has been developed by the CTIC Foundation and the WESO-RG at University of Oviedo (Spain). You can visit the project page at BerliOS for more details.
SWAML reads a collection of email messages stored in a mailbox (from a mailing list compatible with RFC 4155) and generates a RDF description. It is written in Python using SIOC as the main ontology to represent in RDF a mailing list. [Less]
RDFSharp.Semantics is the RDFSharp extension for creating, validating and reasoning with OWL-DL ontologies. It also implements built-in support for most common Linked data ontologies (DC, FOAF, GEO, SKOS, SIOC)