"You can't use Google or Wikipedia".
-We've all heard this from professors before, but so has Google. In an effort to become more relevant in academia, Google has created a search engine that limits itself to academically credible sources.
This means, if you are having trouble finding information through the academic databases your library provides or if you are having trouble narrowing down search term, Google Scholar might be a useful tool.
Also, if information on an intended subject is not avialible through your College Library (you should always check first) and you receive instructor premission, you may be able to use Google Scholar for your academic papers.