They're changing the way we do business (and not always for the better). Don't miss features on Twitter CEO Evan Williams, Google's gambit with the power grid, and an essay about CEO Steve Jobs' leave of absence from Apple.
What began as a do-gooder effort in the Third World has quietly become cutthroat competition. Now one firm, Intel, has broken ranks with other behemoths trying to develop technology that is both affordable to buy and build.
We rounded up the world's most prolific inventors alive-three of them have more patents than Thomas Edison-and asked them the big question: Where do the big ideas come from?