What is the best blog on data visualization?
I'm making this question a community wiki since it is highly subjective. Please limit each answer to one link.
Please note the following criteria for proposed answers:
[A]cceptable answers to questions like this …need to supply adequate descriptions and reasoned justification. A mere hyperlink doesn't do it. …[A]ny future replies [must] meet …[these] standards; otherwise, they will be deleted without further comment.
Best Answer
FlowingData | Data Visualization, Infographics, and Statistics