Gauging the health of the economy is a tricky business. Economists spend a lot of time combing through statistics, but it's hard to feel human blood pulsing through data. And it's easy to miss the signs of life that don't manifest on paper. Imagine stopping by every storefront in person to ask how things are going. A 'hyper-local' news blog called Mission Loc@l has been doing just that in San Francisco.
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