Professional organizations, the yellow pages from the phone book, organizational directories, and public speakers are also good resources. You may also call an organization and ask for the name of the person by job title. There's no one in the world who you can't try contacting.
People like to help students out with job information.
Locate alumni, people you've read about, or people your parents know. You should be prepared. Research the organization, person you'll be speaking with, product produced by the organization, etc. Try easily accessible periodicals, such as local and large metropolitan newspapers. The more you know, the better you'll be able to formulate questions pertaining to the organization and job.