Other Types of Sources
Of course, there are other types of sources besides scholarly and popular articles. Take a look at the guide linked to below, which comes from the Portland Community College Library. It compares sources like Twitter, Tumblr, YouTube, popular articles, and scholarly sources.
Know Your Sources: A Guide to Understanding Sources Links to an external site.
Information Timeline
It also helps to know the information timeline (or information cycle), which helps us know when and where we can find information about an event.
"Information Timeline" by adstarkel is licensed under CC BY-NC-SA 2.0