If you stop reading after this paragraph, you will have already have taken away the most important message.
Most academics turn to archives, libraries, and databases when faced with a research project.
And indeed there is much to be learned about the subject of careers from those sources. However, on the journey of self-discovery that will lead you to a meaningful career decision, you will need to grab your field journal and work among live subjects. Just as an anthropologist would not consider embarking on field work without having done background research, so too will you need to do yours before beginning informational interviews. The first step is to identify the intersection between the things you love to do and the things you're good at doing. Then you'll want to round out your preliminary research by taking advantage of your campus career center, local library, and the Internet to discover what kinds of jobs exist that would coincide with your skills and interests.