I ran across an interesting tool yesterday afternoon, which will take any Web site and display it in a graph form, similar to a molecular structure, based on the site's links, graphics and typography.
Below is a screenshot of the graph for louisgray.com/live

Click for full imageFor other popular graphs, start here:
http://www.aharef.info/static/htmlgraph/Examples:
Apple.com |
Google.com |
ESPN.com |
Yahoo.com
Listening to ''Assorted Trance Volume 10'', by DJ Irish (Play Count: 5)