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Use information from reputable, published sources.
Source: IFLA
The International Federation of Library Associations and Institutions (IFLA) is the leading international body representing the interests of library and information services and their users: http://www.ifla.org/publications/node/11174
Source: http://www.wnyc.org/story/breaking-news-consumer-handbook-fake-news-edition/
"Melissa Zimdars, assistant professor of communication and media at Merrimack College, has made a list of more than a hundred problematic news sites, along with tips for sorting the truthful from the troublesome. She talks . . . about how to be a savvy news consumer in a misinformation-filled world."