Here's a depiction of BrandBrains as a graph using Sala's Java applet.
What do the colors mean?
blue: for links (the A tag)
red: for tables (TABLE, TR and TD tags)
green: for the DIV tag
violet: for images (the IMG tag)
yellow: for forms (FORM, INPUT, TEXTAREA, SELECT and OPTION tags)
orange: for linebreaks and blockquotes (BR, P, and BLOCKQUOTE tags)
black: the HTML tag, the root node
gray: all other tags
[Thanks to The Name Inspector for the pointer]
[tags]Graphs, Graphics, Infographics, Data Visualization, Blogs[/tags]