I've posted several times about data visualisation, but you can't possibly imagine how excited I was to find VisualComplexity. I know, I know; I sound like such a geek, but it is so ool to see the different ways that people interprit information, and visualise it.
I think it's an art form. No question. To take some sterile and analytical, and transform it into a visual representation that tells you everything in a single glance, what took pages of words and numbers to do the same.
VisualComplexity describes itself as "a unified resource space for anyone interested in the visualization of complex networks. The project's main goal is to leverage a critical understanding of different visualization methods, across a series of disciplines, as diverse as Biology, Social Networks or the World Wide Web. I truly hope this space can inspire, motivate and enlighten any person doing research on this field".
If you ever have to report on statistical data, be it marketing reports or something else, go take a look at the site. Really impressive stuff.