Check all sources for:
Use information from reputable, published sources.
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
"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."