If you are a student working for a news organization, you can sign up for Profnet. That’s a service run by PR Newswire that operates as a sort of Linkedin connecting university, corporate and government experts across the country to journalists working on stories that needs their expertise. If you sign up as a journalist on Profnet, which is free, you can then post inquiries for types on info needed. Then Profnet sends out the request and experts who are interested in speaking to you about the story contact you. It can be so effective in getting you a source you might otherwise never find, that some reporters feel that they are cheating by using it.