Q&A for How to Do a Literature Review

Social media marketing refers to the process of gaining traffic or attention through social media sites. Social media itself is a catch-all term for sites that may provide radically different social actions. For instance, Twitter is a social site designed to let people share short messages or “updates” with others.

Yes, of course you can mention your own contributions if they are related. You can say "the author found that...." or you can just mention your own findings and put the references in like any other citation.

In a citation list at the end of your literature review.

Some professors, subjects, and academic styles require or allow headings and some do not. Clarify with your professor or advisor what the expectations are for your faculty.