Google can be a great search tool that can provide you with quality results if you try a few tips:
Evaluating Websites and Other Sources
If you cannot determine the credibility of the information you are using, especially from a website, it's best not to use it to factually support your argument. Using biased or inaccurate information in your paper can negatively impact your grade.
Wikipedia is a great tool for a summary of a topic. Wikipedia content is constantly revised, and entries vary in quality. Some of the content is excellent, some is questionable.
Many educators frown on the use of Wikipedia. Why?
How can you use Wikipedia in a way that benefits your research process?