The rub is that New Mexico is home to many Latinos whose roots in the United States go back since before there was a United States, hundreds of years in some cases.

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Even as New York entrepreneurs can rub elbows with the founders of Foursquare at tech events, the overall scene still lacks the critical mass of entrepreneurs who have successfully exited billion-dollar companies, are starting again and ready to help local entrepreneurs or its own PayPal Mafia.

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They act as giant petri dishes, where creative types and entrepreneurs rub up against each other, combining and recombining to spark new ideas, new inventions, new businesses and new industries.

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New York's supertrendy Bliss Spa offers patrons the Ginger Rub, employing fresh-grated gingerroot (no word on whether that comes with wasabi and chopsticks).

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The rub is being felt particularly hard in Greenwich, a redoubt of Wall Street wealth on the edge of New York City's suburbs, where trees are intertwined with the town's old money legacy.

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