work include the RDF(S) based Corese search engine, and the application of semantic web technology in the realm of distributed artificial intelligence for knowledge management (e.g. ontologies and multi-agent systems for corporate semantic Web) and E-learning. Since 2008, the Corporate Semantic Web research group, located at the Free University of Berlin, focuses on building blocks: Corporate Semantic Search, Corporate Semantic Collaboration, and Corporate Ontology Engineering. Ontology engineering research includes the question of how to involve non-expert users in creating ontologies and semantically annotated content and for extracting explicit knowledge from the interaction of users within enterprises. Future of applications Tim O'Reilly, who coined the term Web 2.0, proposed a long-term vision of the Semantic Web as a web of data, where sophisticated applications manipulate the data web. The data web transforms the World Wide Web from a distributed file system into a distributed database system. See also AGRIS Business semantics management Computational semantics Calais (Reuters product) DBpedia Entity–attribute–value model EU Open Data Portal Hyperdata Internet of things Linked data List of emerging technologies Nextbio Ontology alignment Ontology learning RDF and OWL Semantic computing Semantic Geospatial Web Semantic heterogeneity Semantic integration Semantic matching Semantic MediaWiki Semantic Sensor Web Semantic social network Semantic technology Semantic Web Semantically-Interlinked Online Communities Smart-M3 Social Semantic Web Web engineering Web resource Web science References Further reading Aaron Swartz's A Programmable Web: An unfinished Work donated by Morgan & Claypool Publishers after Aaron Swartz's death in January 2013. External links Emerging technologies Web 3s Knowledge engineering Web services