[venkasub]

Other than the usual books, I dig the most recent innovations (on Twitter) by subscribing to these lists :

https://twitter.com/BrianBBrian/lists/data-visualization https://twitter.com/venkasub/lists/viz

Also, collated a list of libraries almost 3 years back: http://theuforce.blogspot.in/2010/12/data-visualization-char...