Financial visualizations are always interesting, due to the wealth of information they have at their disposal: Stock volumes, mins & maxes, prices, and more.  The StockMapper website offers an interactive visualization of near-real-time changes in the Nasdaq and NYSE Euronext, allowing you to sort and filter by sector (Oil & Gas, Healthcare, Financial, etc) and more.  The resulting visuals are fast & snappy, with a near overwhelming amount of data to comprehend.

While a bit overwhelming for ‘mere mortals’, financial analysts love this stuff.

StockMapper. via Infosthetics