Why did the author publish this information?
What are the author’s credentials? Who are they?
Are they related to your research area?
When was it published? Updated? Does it matter?
Was the information reviewed?
Is the information correct in comparison to other things you have read? If not, where do they diverge?
Does it help to answer your research question?
What kinds of bias might the author(s) carry? How would this impact their writing?