I took the TouchGraph code and modified it so it would display artist associativity graphs for GenieLab artists. It’s an open source license, I’m surprised more people don’t use it.
Here’s the graph for They Might Be Giants.
The hardest part of getting this working was actually figuring out how to display applets correctly across Navigator, IE, Firefox and Safari. I had no idea this was so complex. I still can’t get it right in Firefox on MacOS. I finally gave up on “universal html” and just did some browser detection. eck.