A few years ago, we had the local electric company do a home energy audit. Our 19th-century house was hard to heat, and as we suspected, the inspector found we didn't have enough insulation. But our most cost-effective change turned out to be the purchase of a new refrigerator. You can't manage what you don't measure. Once you start looking at the right data, the results can lead you to solutions you hadn't imagined.
Stories by Elana Varon
In the latest tweak to its ever-evolving business model, online retailer Amazon.com is hawking its own e-commerce technology — software, website developing and hosting — through a new subsidiary, Amazon Services.