Google Scholar can be a great tool for research, because, unlike standard Google searches, Google Scholar searches just a small part of the Internet for scholarly materials.
However, Google Scholar is generally best used as a starting point or for gathering background information. It should not be the only place you search.
Also, many articles you find in Google Scholar may ask for payment to view the full text - instead of paying to view a resource, fill out an Interlibrary Loan request! There is an excellent chance that another library will have the requested resource and will allow us to borrow it at no charge.
For more information on searching Google Scholar, check out their "Search Tips".