Energy investors looking for opportunity beyond oil and gas would do well tracking the initiatives of giant companies like Google (GOOGL -2.17%) and Wal-Mart (WMT 0.57%). The sheer size of these behemoths can make a big difference in the types and quantities of energy and energy-related products and services we consume. In this video, Fool.com contributor Aimee Duffy looks at recent moves by these two behemoths, illustrating why investors should be paying attention.
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