United Kingdom institutional systems Governor RDF author Tim Berners-Lee UK Government Thomson Reuters Web services Google Andy Powell Web forum JISC Executive Repository software library management systems BBC Prime Minister HTML University of Southampton Cambridge University author identity systems Web developments Amazon content management added value services Congress library OPACs institutional services library systems Creative Commons California United States PDF JISC Innovation Support Centre institutional web pages Cabinet Office Unlocking Service Johnson & Johnson web inventor Web community Scientific American information management data.gov.uk Semantic Web Technologies Web Consortium semantic technologies European Commission Leigh Dodds XML software tools