For documentation on the GML graph format that is used by Graphael, please visit:
The GML File Format

Previous works:

• GraphAEL: Graph Animations with Evolving Layouts
  [ps]     [pdf]
• The TGRIP homepage
• A System for Graph-Based Visualization of the Evolution of Software ACM Symposium on Software Visualization , to appear in June, 2003.
• A Fast Multi-Dimensional Algorithm for Drawing Large Graphs, 8th Symposium on Graph Drawing (GD), p.211-221, 2000.
• GRIP: Graph Drawing with Intelligent Placement, 8th Symposium on Graph Drawing (GD), p. 222-228, 2000.
• An animated gif showing GRIP (an older version of TGRIP) at work.