Most of us use information from the open web on a daily basis and while it usually works out great, we also have experiences with that information being wrong— showing up for dinner at a closed restaurant because the hours have changed or the business shut down, etc. As you write college level work it is important for you to be thoughtful about the accuracy and credibility of information you find online. 

If you want an assist, you can always ask for help from a Librarian!