Graphs of desert island discs data (2003-2010) taken from the Guardian datablog. GML format.
One file with artists as nodes and castaways as edges and one file with castaways as nodes and artists as edges.
GML (Graph Modelling Language) files can be opened by Mathematica, Gephi etc.
ODbL licence (attribute, share-alike, keep open)
https://en.wikipedia.org/wiki/Graph_Modelling_Language
https://www.theguardian.com/tv-and-radio/datablog/2010/nov/11/desert-island-discs-radio4