The graph is generated by the Nexus Facebook application and shows the connections between my Facebook friends. I was interested in how it roughly broke down into a 'northern' and a 'southern' concentration.

On inspection, it turns out that folks in the Northern concentration are mostly my US friends (and the most highly connected nodes are OCLC Programs and Research colleagues with whom I have many shared friends). The folks in the Southern contentration are mostly UK friends (and the most highly connected nodes are people who work or worked at UKOLN).

Not sure it means much, but it was interesting to play with for a while ....