College writing requires a higher degree of quality and reliability from sources than high school or personal writing. The information you use needs to be accurate, credible, reliable, and timely. No longer can you do a Google search and use the first pages that you find that relate to your subject. You need to use sources written by subject experts or those who have done quality research on the topic.
It is a safe bet that anything from the following list is not appropriate for an essay in a college course.