Scholarly journals contain articles written by experts for experts. Articles are reviewed by other experts before they are published. This is called peer review. A scholarly article typically has information about authors (such as credentials and affiliations), an abstract, footnotes/bibliography, and perhaps extensive statistics or charts. Authors often provide at least a brief review of the literature on the subject. Many databases allow you to restrict your searches to scholarly journals, sometimes called "refereed" journals.
Google Scholar searches specifically for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research. Use Advanced Scholar Options to refine your search!
Find many more databases at databases @ Emory.