Your literature review should have the following components. These sections don't need to have headings or sub-headings.
Introduction: Provide an overview of your topic, including the major problems and issues that have been studied.
Body: This is where you actually talk about the literature and your findings. Hopefully, you noticed specific themes emerge as you did your reading. You may want to create sub-headings for each of the themes you found.
Conclusion/Discussion: Summarize what you've found in your review of literature, and identify areas in need of further research. Make sure to mention any gaps in the literature - things you think should have been researched, but were not.
Synthesize, don't summarize. Here's an excellent example of synthesis provided by NC State University; it's essentially a text summary of the chart in the previous section. The overall topic is women in World War II.
Use quotes sparingly: Since the purpose of a literature review is to talk about many different articles, you won't be discussing any one article in great detail. NC State University suggests that there are a few cases where it's okay to use quotations:
Make sure not to misrepresent the author's ideas.
Let's look at an example. Here's a direct quote from an article:
This quote might lead you to believe that Kirschner & De Bruyckerec believe in the concept of digital natives. However, in this case, they are describing the thoughts of another author (Marc Prensky). In fact, Kirschner & De Bruyckerec's article argues that the concept of digital natives is a myth - in fact, it's right in the title of their article:
As the person selecting the quotation, I could have been clearer about whose ideas I was expressing. Make sure you understand the author's intent when you're writing about their work.