Gephi: Makes Graphs Handy – “Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.“
HEAD JS: The Only Script in Your – “Load scripts like images. Use HTML5 and CSS3 safely. Target CSS for different screens, paths, states and browsers. Make it the only script in your HEAD. A concise solution to universal issues.“
Sourceforge: Ditaa – “A small utility that converts ascii-art diagrams to nice-looking bitmap diagrams automatically. “
Ditaa: Diagrams Through ASCII Art – “ditaa transforms ASCII art into graphical diagrams. To see it in action, make changes to the text below and click Update the Diagram.“
Emacs Screencast: Artist Mode – “Artist mode, toggled by M-x artist-mode, lets you draw lines, squares, rectangles and poly-lines, ellipses, and circles with your mouse and/or keyboard. It is extremely useful when inserting text diagrams or figures in your source comments.” – Use this with Ditaa!