Some really interesting visual representations (cataloged via
http://www.visualcomplexity.com)
::
http://www.turbulence.org/Works/song/gallery/gallery.html"Shape of Song"
If you've ever studied music/composition, you'll understand the idea of repeating sections, a recurring theme, verses and bridges, etc. These images show the connections between musical themes using circles - really neat!
::
http://www.aharef.info/2006/05/websites_as_graphs.htm"Websites as Graphs"
Each little dot represents an element which links to another page of a website. Take a look at the resulting mappings! (Especially see Google's visual mapping...)
::
http://www.oreilly.com/news/graphics/prog_lang_poster.pdf"History of Programming Languages"
For the inner programming nerd.