Gravisto (The Graph Visualization Toolkit)
New Home for Gravisto
Gravisto (Graph Visualization Toolkit) is a program for visualizing and editing graphs. Over the course of 15 years, many useful plugins have been developed to handle graphical information efficiently. Unfortunately, this open source project had recently become homeless and needed a new home. Read more...
Gravisto is licensed under the GPL
Have a look at treejuggler.org for some articles about Gravisto and TreeJuggler
There will be more material/information coming soon.