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Another advantage of communication, which helps us spread knowledge and information among people. For example, writers publish a book to share their experience with readers, teachers convey their teachings with students, friends and colleagues discuss their ideas with each other and companies interact with consumers. In addition, the Internet engine not only does not allow access to information of all kinds, but facilitates access to the world with people nearby. Undoubtedly, the process of sharing knowledge and information is not possible.