Weibo, China's equivalent of Twitter, is changing the way the Chinese communicate and has become a major source of news. Its more than 300 million users are, among other things, using it to criticize government policies, stop official injustice and help ordinary people — but only up to a point.
The Bay of Biscay, off Spain's northern coast, is notorious for its huge surf, which has claimed countless lives in shipwrecks over the centuries. Now Spanish engineers have found a way to harness the power of those big waves to produce electricity.
Gadgets are always popular choices as holiday presents. Linda Wertheimer talks to regular technology commentator Rich Jaroslovsky, of Bloomberg News, about the gadgets he likes. Tops on the list are a camera, a quality sound system and a coffee machine.
Long lines and huge crowds can make holiday shopping stressful. But more people are turning to smart phones and tablets to ease the pain with apps that let you scan bar codes and compare prices on the fly. Guest host Celeste Headlee speaks with NPR's Senior Business Editor Marilyn Geewax about the mobile shopping revolution.
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