D3.js is a JavaScript library that lets you bring data to create interactive graphs and charts that run on a browser. It is a very powerful tool for creating eye-catching data visualization.
This slide deck is a quick showcase of what can be done with D3 and PubNub data stream. Let's get visual with a bubble chart!
Full tutorial:
http://www.pubnub.com/blog/fun-with-d3js-data-visualization-eye-candy-with-streaming-json/