This tool is pretty neat. Enter the url of the website of your choice, and it will graph it and display the site in a visual manner. It's really quite beautiful as the graph is generated, too, as it's an animated process.This image is the graph for this blog, and it's still growing and taking form as I write this entry!
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
