If you use Wikipedia, please be aware that there are risks to using it as a source (not even counting the risk of upsetting your teacher, who requested that you use it sparingly, if you use it at all).

So says science Journalist Steve Silberman, by way of  Rafe Colburn of r3c.org

If you’re curious about the historical context for the TV series The Pillars of the Earth, Wikipedia is an outstanding resource. On the other hand, if you’re writing a news story about outbreaks of infections caused by drug-resistant bacteria in hospitals, you shouldn’t rely on what you read in Wikipedia. Science journalist Steve Silberman writes about how spurious information sourced from Wikipedia is pervasive in stories about acinetobacter, and why that bad information could cost people their lives.