Supporting blog post: http://blog.intercom.io/data-visualisation-in-web-apps/
I have given variations of this presentation at conferences such as WebVisions 12, Beyond Tellerand, MIX 11, MidwestUX.
You can find a video recording of it at
http://vimeo.com/34784156
http://channel9.msdn.com/Events/MIX/MIX11/OPN04