You confirm that the author or site an authority on the subject.
You check to see if the information is accurate
You do as many of the above as possible.
You check to see if the author has been objective
You check to see if the information is current
it is better to use as many significant words as possible
it is better to write a complete sentence.
it is better to use only one word.
and, or, not
and, or, maybe
or, maybe, not
a single search engine like Google.
a directory search like Yahoo
a meta search site like Dogpile
An article that only presents one point of view or omits facts is biased.
Better looking the web sites are more likely to have information that is correct.
With so much information on the Internet you are more likely to find what you need.