In the most sought-after markets brokers have been reporting bidding wars, a dynamic that began getting attention last summer in places like Silicon Valley, Miami and Phoenix.

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Shinozuka calls his revival plan "Phoenix 21" and has set up a new Silicon Valley office to tap into industry buzz.

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That Orange County mortgage broker (who used to be a pizza delivery guy) can take a class online from the University of Phoenix (APOL) and become a computer engineer in Silicon Valley.

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But a few up and coming startups are calling home in another valley, as companies like Stremor call the area near Phoenix, Arizona its home.

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