Currency:
When was the source published?
How recent does your research need to be, based on your topic?
Reliability
Is the information reliable?
Can it be verified by other sources?
Does it include references or links to other sources?
Author
What are the author’s credentials or expertise?
Is a publisher listed, and do they take responsibility for the veracity of the information?
Purpose
What is the purpose of the article?
What bias does the author or publisher likely have?