MLA International Bibliography is the definitive literary research database, indexing the most authoritative scholarship on Graphic Novels from books and academic journals. You can also use the "Names as Subjects" feature in MLA to find criticism adn scholarship on individual graphic novelists. MLA indexes and links to the entire JSTOR literary research collection as well as linking to many other full-text providers.
Academic Search Complete is a full-text database offering content from thousands of periodicals in all different subject areas.
This is a great database to search for book reviews and interviews with authors.
Academic ProQuest Newspapers offers full-text access to current editions of the New York Times, LA Times, Wall Street Journal, and many, many other papers.
You'll also want to check out these books and journals...