Articles give you a short focused treatment of up-to-date content. The articles in scholarly journals go through a peer-review process -- reviewed by experts -- before publication. The result is information that is more reliable.
Use articles from scholarly journals when you need original authoritative research; publications written by scholars or subject experts; factual documented information to reinforce a position; and references that point you to other relevant research.
Scholarly journals are published more quickly than books, although the peer-review process can be lengthy.
(Water quality monitoring, Prince George's County, Maryland; photo by Will Parson/Chesapeake. CC BY-NC 2.0, https://creativecommons.org/licenses/by-nc/2.0/.)
In addition to the Top Picks on the Home tab, these databases cover a wide variety of multi-disciplinary content:
What kind of information do you need? If you are writing for a class assignment, you may be required to use peer-reviewed ("refereed") or scholarly sources. In any case, you should always look for sources that are authoritative.
Scholarly Checklist -- Look for:
Authoritative Checklist -- A source can have authority even if it isn't scholarly.
Other Criteria to Consider -- These are not definitive, but worthy of consideration: