All the following articles can be found in the database Communication and Mass Media Complete
(Remember, CTRL-F (find) can be your friend with some of these questions...)
What are the Oxford Bibliographies?
Oxford Bibliographies is a peer-reviewed online reference resource authored by top scholars. The articles in Oxford Bibliographies are meant to be selective guides through the literature on your topic.
(Each article should have at least one citation to a resource in the bibliography - if you can't find it, please ask me!)
What is Google Scholar?
Google Scholar provides a simple way to broadly search for scholarly literature (articles, books, theses, etc) - it uses the Google search engine algorithm to search across scholarly publishers, university repositories, professional societies, and academic websites.
One great feature of Google Scholar is the "Cited by" feature, which lets you see the list of academic works that have cited the work you have found.