Tune Glue

Tune glue is a fun little Flash site that lets you create a music map where you can explore relationships between bands and musicians. Enter a name as a starting point. Each artist or group is shown as a node. Click on the node to expand or delete it from your diagram. You can drag nodes or lock their positions in the diagram. Some artists have news, links, etc. as well. When you expand a node, connections are made to neighbors. At the right is a diagram I made starting with one of my favorites, ZZ Top. You can see their node near the center (click on the image to see a larger view). The logic seemed pretty good as I also like the neighboring groups within a couple degrees of separation.

The diagrams aren't always perfect. Sometimes an artist will show up in 2 places and band names can be tricky (e.g. The Doors and Doors were separate nodes). Nevertheless, it's clever and worth a look.