CAVEAT: All research tools have limitations, including licensed databases and free online tools like those illustrated below. Peter Jacso describes some of these problems in his November 1, 2009 Library Journal article, "Google Scholar's Ghost Authors."
For instance, he suggests doing a Google Scholar Advanced search by entering "login" in the Written By box. Asking students to do this kind of search can lead to a fruitful critical thinking discussion.
MORE GOOGLE SEARCH OPTIONS: