Bibliography of journal articles, books and dissertations dating back to the 1920's containing over 2.3 million citations (some with full text) from more than 4,400 journals and 1,000 book publishers. Primarily oriented toward the Humanities.
Literature Criticism Online: Children's Literature Review covers more than 750 authors and includes numerous entries focusing on individual titles and topics in children’s and young adult literature, including picture books, folklore and graphic novels.
Once you find a really good article on your topic, take a look at the references. Citations give you the bibliographic information you need in order to find the articles the author used for his/her research. If you understand each part of the citation, it makes it possible for you to search for OR request the information through ILL (Interlibrary Loan).
Google Scholar enables you to find more articles for your research outside the library. It also has a Cited By feature to help you track the number of times an article has been cited and where the article has been cited. Any articles you can't find in the library can be requested through ILL.