Information is not just text on a page. Sources of information are described/categorized in a number of ways. See the boxes below.
Types of Publications:
For serial publications (i.e. Newspapers, Magazines & Journals), use Ulrich's or Cabell's (see below) to determine the quality of the publication you are looking at.
Types of articles:
For assistance identifying a research study, please take a look at Anatomy of a Research Study. This online tutorial will provide you with an overview of the most common elements found in most scholarly research studies.
For assistance identifying a literature review, please take a look at the Bentley Library's How do I write a Literature Review? FAQ response.