What is Public Interest Journalism?

To answer the question, "What is public interest journalism?", it is first necessary to define the public interest and journalism.

How do you define those meanings?

Perhaps you first wish to provide a definition of the public interest and/or journalism.

If so, perhaps you will define the public interest and/or journalism in the context of democracy, or not as the case may be.

How does public interest journalism relate to the liberal arts, the performing arts, the literary arts and the visual arts?