Here is a sample list of results (search on comic books) from Communication & Mass Media Index, available through EBSCOHost. The first record has a PDF available of the full article, but the second record only has an abstract.
If the full text is not available for the article you want to see, click on the button or the "Find Text" link to see if the full text is available in another database.
Some databases, like JSTOR, have exclusively scholarly/peer-reviewed articles. Other databases have a mix of trade publications, popular magazines, and scholarly journals.
If you are not sure if a journal is peer-reviewed/scholarly/refereed, you can check in Ulrich's Periodical Directory . Then just enter the title or whatever information you have: