Currency
Relevancy
Authority
Accuracy
Purpose
Currency
How up-to-date is it?
Relevance
Is it what I need or want? Does it help me?
Authority
Who wrote or published this?
What makes them an expert? (Do they know what they're talking about?)
What makes them an expert? (Do they know what they're talking about?)
Is the information correct?
Can you verify it in more than one place?
Can you verify it in more than one place?
Does it make sense?
Does what you're learning fit with what you already know to be true, or with what you've found in reliable sources?
and
How well has it been edited?