This article introduces core Semantic Web concepts and standards, and explains how to expose an LDAP directory as a service that Semantic Web applications can consume using the open source SquirrelRDF utility.
Our goal is to design and implement D-FOAF, a distributed authentication and trust infrastructure without a centralised authority. D-FOAF will be a backbone for trust applications based on social relationships and will establish idenity of users similar to the way we establish identify and trust in real life.