Here is a sample search from the Communication and Mass Media Complete database:
Notice that you can use synonyms to make sure you get all the articles that cover your topic. So in the first box I used cell phones or mobile phones. Here is the first result. Notice the icon that tells you that this is an academic journal. Refer to the tab about Scholarly Sources to refresh your memory. See the link at the bottom of the citation that says PDF full text. Click on that to get to the actual article.
If you come across an article without the full text, click on the link below the article reference that says Search for print or electronic full-text. This will take you to other links to the full-text of the article. If the library does not own the material your results will tell you that also.