Sometimes we may make reference to Internet resources, like statistics or a definition of a medical term. But, did you consider the credibility of these "facts"? Have you questioned if they are correct? Do not believe everything written online. Anybody could publish an unsubstantiated opinion on their web-page. Do not even believe photographs - they are so easily doctored to make jokes, urban legends, or deliberate hoaxes. When looking for information online, search for the online versions of quality print sources such as Encyclopedia Britannica, The New York Times or The Economist. Many governments and organizations like the United Nations maintain excellent and reliable websites. Look for quality websites and double-check facts with a credible source when you have doubts. Don't be fooled.