B12 as a graph looks like this:
I've used some color to indicate the most used tags in the following way:(via Pharyngula) I'd donate to the guy and get a higher resolution file, but his paypal link seems broken in both browsers I tried.
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
Technorati Tags: graphics, screen_shot