They don't always bring up substantial articles.
They don't distinguish between good and bad articles.
They fail to retrieve the best articles
All of the above
Do you have good reason to believe that the information on the site is accurate?
What is the author's point of view?
What makes you think the "facts" you see are really facts?
What does Wikipedia say in reference to the topic?
Where an article was originally published.
Information about authorship
Why the article was written.
If the article is falid.
What is being said
What is not being said
None of these
All internet pages
Pages designed for the Internet
Scholarly articles used for research