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UMBEL (Upper Mapping and Binding Exchange Layer) has two purposes. Its first purpose is to provide a general vocabulary (the UMBEL "vocabulary") of classes and predicates for describing domain ontologies, with the specific aim of promoting interoperability with external datasets and domains. The second purpose is to provide a coherent framework of broad subjects and topics (the UMBEL "reference concepts"), suitable as binding nodes for mapping relevant Web-accessible content, also with the specific aim of promoting interoperability and to reason over a coherent reference structure and its linked resources. UMBEL presently has about 28,000 of these reference concepts drawn from the Cyc knowledge base, which are organized into more than 30 mostly disjoint SuperTypes.

The DBpedia Ontology is a shallow, cross-domain ontology, which has been manually created based on the most commonly used infoboxes within Wikipedia. The ontology currently covers over 272 classes which form a subsumption hierarchy and are described by 1,300 different properties.

The British National Bibliography (BNB) records the publishing activity of the United Kingdon and the Republic of Ireland and is such a measure of their intellectual output. This has traditionally included printed publications and more recently has been extended to electronic publications following the extension of legal deposit to this class of material in 2003.

Kasabi Directory Creative Commons Attribution (CC-BY) Uncategorised This dataset is an aggregation of all of the machine-readable metadata relating to datasets in Kasabi. It has been compiled by crawling all of the VoiD descriptions available from data.kasabi.com. This includes the basic dataset metadata as well as some data about its structure, e.g. resource counts and lists of classes and their occurences.

The Web Science Trust (WST) is a charitable body with the aim of supporting the global development of Web Science  through a network of world class laboratories known as WSTnet . It is hosted by the University of Southampton. The origins of the Web Science Trust can be found in the Web Science Research Initiative (WSRI) which was established in 2006.

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Upper Mapping and Binding Exchange Layer A lightweight, subject concept reference structure for the Web