When you write a research paper, you're expected to cite sources. This gives the reader insight into what influenced your thinking and an opportunity to verify that you've been fair and accurate with how you've presented the information.
What about other sources of information? Where does that information come from?
The following links describe the methodology and ethical standards of a variety of information sources we are exposed to very frequently, if not daily. In many cases these represent ideals. As such, those of us who are "consuming" content should be on the lookout for instances where individual creators and entire organizations may be falling short of those ideals.