Google is a powerful search tool, but it also has several limitations that researchers should consider. It can be useful in identifying fake news, but it can also deliver false and misleading sites in its search results.
1. Google PageRank Algorithm - Part of Google's algorithm ranks pages by the number of other pages that link to it and the importance of those pages. This can be manipulated by certain websites so that they appear high on Google's list of results. These sites are sometimes false, misleading, extremely biased or even hateful.
2. Filter Bubbles - Algorithms in search engines use our previous searches and personal information to deliver individualized results. According to Eli Pariser, author of the book The Filter Bubble, this prevents some types of information from ever being in our results list as more links are delivered that confirm our interests and beliefs. Check out the Loyola Marymount Library's excellent guide on filter bubbles,
3. No Editorial Process- Google, like most search engines, does not evaluate web sites for accuracy or quality. The top results on a Google search are not based on the quality or accuracy of the information but on Google's algorithm. PageRank remains an important part of that algorithm.