Very cool! Couple thoughts - 1. I noticed some artists get added a second time as the network expands, so some de-duplication may be needed? 2. It could be interesting to (optionally) scale the node size or border width with respect to the node degree.. In particular for the nodes that were clicked on (and thus, have their degrees inflated).. this way it would be easy to spot artists that have a lot of connections just based on who else is currently displayed.