Pearson's strategic investment in NOOK Media will accelerate customer access to digital content by pairing its leading expertise in online learning with NOOK Media's expertise in online distribution and customer service.

ENGADGET: Pearson buys a small stake in Nook Media, wants a fast track for digital education

Amazon built unparalleled warehousing, distribution and customer management economies of scale that still exert, by some estimates, a 19% price advantage over Walmart.

FORBES: Groupon Hysteria

Greenpeace asks companies to measure and reduce their greenhouse gas emissions throughout the life cycle of their products: supply chain, manufacturing, distribution, customer use, and end-of-life, using a combination of energy efficiency, renewable energy, and energy policy advocacy.

FORBES: How Green Are Your Gadgets?