Virtuoso Universal Server

As an hypermedia oriented protocol, HTTP is ultimately about links between entities. That said, the nature of entities and their associations with other entities always ultimately depends on the nature of the data model within which they exist.

OpenLink Virtuoso SPARQL Query

The concept of the Social Semantic Web subsumes developments in which social interactions on the Web lead to the creation of explicit and semantically rich knowledge representations. The Social Semantic Web can be seen as a Web of collective knowledge systems, which are able to provide useful information based on human contributions and which get better as more people participate.

Linked Data is a term used to describe a method of exposing, sharing, and connecting data on the web via dereferenceable URLs.