Reporters should always be trying to challenge their assumptions about things. If we’re talking to the same people all the time, we’re not challenging our assumptions.” Source: AJR, June 2010, The Quote Machines
Some tips from NPR’s Education Team for finding diverse sources for your reporting, including some of these tools.
Media Companies Are (Still) Failing When It Comes to Diversity
Finding Diverse Sources for Science Stories and Including Diverse Sources in Science Stories by Christina Selby at TheOPENNotebook has many links on finding and using diverse sources in science journalism [applies to all journalism though]