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