What: GraphViz
 Where: http://freshmeat.net/projects/graphviz/ 
        http://www.graphviz.org/ 
 Description: Set of graph drawing tools and libraries,
        supporting hierarchical and mass-spring drawings.
        Tools include dot, neato, twopi, lefty, dotty, lneato, tcldot,
        gpr, ccomps, colorize, gc, nop, prune, sccmap, tred, unflatten, grappa.
        Includes support for ActiveX, Java, Tcl/Tk, and X11.
        Current:  New Release 2.38 (13 April 2014)
 Updated: 2014-04-13
 Contact: See web site