The ability to critically select sources of information - to decide is this academically appropriate to use in my work? - is a vital skill you need to develop.
Critical selection is:
Evaluating a source
To gain understanding about that source and it's relationship to other sources
From the understanding you can then make decisions about using or not using that source
How do you evaluate a source? Use these five questions:
How is that relevant to your research subjects?
How does that fit with what other sources relevant to your research subjects?
What authority do they have to produce the source?
What have they previously published?
Are there other author(s)* who agree or dispute what the source says?
*Author(s) can be individuals or organisations.
Is there a copyright date (within the document, on the webpage)?
Is there a date when the source was last updated or due to be updated/reviewed?
Geographically: Town, City, County, Region, Country, Continent, Global.
Setting: Supermarket, School, Hospital, Museum, Police Station, etc.
What is its purpose?
What need does it address?