Discovered Pages
[Discover] Hypergraph - Hyperbolic graphs and trees : Home http://hypergraph.sourceforge.net/
(visualization opensource java xtremobyte) 
[Discover] JGraphT http://jgrapht.sourceforge.net/ (java library framework xtremobyte)
[Discover] Network Analysis And Visualization http://networkviz.sourceforge.net/ (visualization xtremobyte tools java)