It is okay to start looking for information using Google (or internet search engine of your choice). However, using Google Scholar can help you poinpoint more scholarly information. An added benefit to using Google Scholar is that it provides links to full text articles provided by the Purdue Libraries.
If you are off campus, you can edit the Library Links in Scholar Preferences so Google Scholar will continue to highlight the full text that is available through the Purdue Libraries.
If you are expected to do a comprehensive literature search, you should consider using some of the scholarly databases provided by the Purdue Libraries.
Interlibrary Loan (ILL) supports the instructional, research, and scholarly activities of currently employed or enrolled West Lafayette faculty, staff, and students by obtaining research material not owned by the Purdue University Libraries. To request journal articles or other materials, go to the ILL page, click on the green button that says ILLIAD, and fill in the required information about yourself and the requested material.