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How much can 20 million Facebook fans and eight million-plus Twitter followers help fund-raising efforts? Let's look at the...

Gates- and Google-funded Sal Khan seeks to make his popular YouTube lessons universally accessible, and change the nature of education in the...

"I mean, we're so small that anybody can probably swallow us up tomorrow for the right price," says Holger Luedorf, Foursquare's VP of mobile and...

The Higher Council of the Egyptian Armed Forces have set up an Arabic-language Facebook page and it's already a big...

An artificial heart and its lightweight power drive. A better airline for Brazil. Chocolate from Madagascar, a soccer shirt made of plastic water bottles, and that little coupon startup in Chicago that's suddenly worth billions. All this from one simple word: innovation. Here is this year's list...