When was this source published?
How old are the references and data used?
Has this source, or its data, been updated?
Does this type of information get updated?
Is there likely to be more recent information available elsewhere?
Is this information relevant to your assignment? Is there likely to be better information?
Is this aimed at the correct audience?
Who wrote it? What are their qualifications?
Where do they work? Who do they work for?
Are they likely to have a good understanding of this field?
Is the information reliable?
Can you find the original source?
What is the quality of the presentation? Are there significant errors?
Do the conclusions match the data?
Have all sides been considered?
Why has the article been written?
Is there any obvious bias? Is the author or their employer likely to get a benefit out of the recommendations?
Is it recommending a particular course of action or therapy? Does the data support this? Are any alternatives considered?
Publishing without peer review - articles are submitted, selected and possibly modified by the editor, and published.
Publishing with peer review - submitted articles are reviewed by other experts in the field before being accepted for publication.