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The document provides an overview of the U.S. entrepreneurship ecosystem with a focus on resources in Chicago. It lists goals of understanding the entrepreneurial ecosystem in the U.S. and how to connect with local entrepreneurs. It then provides links to reports on startup ecosystems, history of Silicon Valley, books on building startup communities, foundations supporting entrepreneurship, tech hubs, and resources specific to Chicago's innovation ecosystem such as accelerators, incubators, and investors. The document suggests connecting with others through LinkedIn, alumni networks, trade organizations, universities, and discussion.Read less