Foursquare's Dennis Crowley talks about Facebook competition.

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The Human Development Index takes into account life expectancy, education, income, adult literacy and primary school enrollment to produce a measure of human capital. These factors don't necessarily fluctuate together; the graphic below displays the components of the HDI separately in order to illustrate the varied nature of human development.

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A new way of looking at the Human Development Index illustrates substantial differences between countries with similar levels of human development.

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Advanced biofuels production does face challenges, but they are far from insurmountable.

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If you think being an adult costs, try recapturing your youth.

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Start using data to predict the future, not just learn from the past.

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