Context of the Book.- Law and the Semantic Web, an Introduction.- Introduction: Legal Informatics and the Conceptions of the Law.- Statistical Study of Judicial Practices.- Theoretical Papers: Legal Ontologies and Methodologies.- Use and Reuse of Legal Ontologies in Knowledge Engineering and Information Management.- Types and Roles of Legal Ontologies.- CAUSATI O NT : Modeling Causation in AI&Law.- A Constructive Framework for Legal Ontologies.- On the Ontological Status of Norms.- Building Legal Ontologies with METHONTOLOGY and WebODE.- Institutional Pragmatics and Legal Ontology Limits of the Descriptive Approach of Texts.- Practice Papers: Information Retrieval and Applications.- Using NLP Techniques to Identify Legal Ontology Components: Concepts and Relations.- A Methodology to Create Legal Ontologies in a Logic Programming Information Retrieval System.- Iuriservice: An Intelligent Frequently Asked Questions System to Assist Newly Appointed Judges.- NetCase: An Intelligent System to Assist Legal Services Providers in Transnational Legal Networks.- No Model Behaviour: Ontologies for Fraud Detection.