Drilling into the LOD Cloud

I am doing a presentation (tomorrow) on lcsh.info at DC2008, and of
course (hat tip to PaulMiller) I'm using the LOD Cloud to illustrate
how you all actually putting RDF to work.

While the LOD Cloud is great for visualizing the different data sets
that are getting linked together, I was wondering if anyone happens to
have some visualizations of the type of links that exist between
resources in the LOD Cloud.

I guess what I'm thinking of is the usual graph illustration with
nodes, arcs, etc -- with resource URIs that live in different
namespaces: geonames, dbpedia, etc ... I'd like to illustrate the
importance of those linking assertions.

If you have something handy, I'd love to use it, and spend more time
drinking beer here in Berlin :-)

//Ed