It is not true that there is no place for introverts in the business world, but they must learn to communicate and build their networks of contacts. For example, joining a local professional organization of entrepreneurs is a good way to meet people. Take advantage of speaking at conferences or write articles about your business experiences.
Entrepreneurs should understand the broader context of the society they are looking for customers in. This requires following new technologies, but also watching the news and cultural developments. They should know what their customers are interested in and what they do not have.
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Article source Entrepreneur.com - website of a leading U.S. magazine for entrepreneurs