From the American Society of Plant Biologists
Use the CRAAP Test
Currency - Is it timely?
Relevance - Useful for your purposes?
Authority - Who? What is the source?
Accuracy - References to back it up?
Purpose - Why? Is there a bias?
More detailed information on the CRAAP Test
Library Tutorials: For more information and help on all steps of the research process, see the U of A library's foundational tutorials