In a recent blog post, Tim Berners-Lee, Director of the World Wide Web Consortium, wrote about a new paradigm. In the early days of the internet it was the computers and the wires that were important; more recently it was the documents that were the important things, the centres of focus and attention. Now, and in the future, “it’s the things they are about which are important.” Tim refers to this as the Graph, to distinguish it from the Web, and also to distinguish it from social network sites that contain a subset of a representation of a Graph, but are not the Graph.