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