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Jim pointed out some good resources. In addition, IT managers and executives building Big Data teams consistently tell me they're looking for professionals with that rare mix of business and technical acumen. Anybody smart enough can be taught to use the latest data-mining, analysis and visualization technologies, but those who also possess a sharp mind for business will think outside the box, and change assumptions on the go, to build and modify queries that dive to the heart of the matter - to unlock the most valuable and actionable business intelligence that will spur a competitive advantage.
Big Data is a rich subject, here are some more expert-crafted resources:
Hope this helps!