A literature review is
The process of reading, analyzing, evaluating, and summarizing scholarly materials about a specific topic.
Source: http://grammar.about.com/od/il/g/literaturereviewterm.htm
Not to be confused with a book review, a literature review surveys scholarly articles, books and other sources (e.g. dissertations, conference proceedings) relevant to a particular issue, area of research, or theory, providing a description, summary, and critical evaluation of each work. The purpose is to offer an overview of significant literature published on a topic.
http://library.ucsc.edu/help/howto/write-a-literature-review
"Scholarly Resources" are information resources that are relevant to academic research. Scholarly information is created by scholars and experts.
There is a lot of information out there in magazines and the internet. Some of the information is good, quality information and some of it is subjective, opinionated information.
When you use the library's resources, you make your search for "Scholarly Resources" easier. This includes print and online resources.
Scholarly Resources include:
Sources like Wikipedia are great for "pre-search". A Wikipedia article should give you enough information to get started with research by selecting keywords and and noting important aspects of a subject or event. But, it is never appropriate for any bibliography or works cited page.