It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
As you interact with the various sources you have discovered, you will want to look closely at several key elements to determine their level of credibility. This is especially important if you located some sources using popular web browsers such as Google.
There's a place in scholarship for all types of sources. Newspaper articles can give important first-person details of an event or reaction, trade journals are sometimes the best place to find authorities in a practical field, and peer-reviewed articles (while often the best resources for academic arguments), can sometimes be overly specific if you are looking for high-level perspectives. Your professors and librarians are here to help you learn how to discern among sources - don't worry if it doesn't come naturally at first!