It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Children's and Young Adult Literature Research Guide
The most important database for literary research, and probably the best place to start.
You can find much more information about searching MLA on the main Literatures in English research guide.
Besides searching for specific works, you can also use the subjects to search for things like "children's literature," "British literature," etc.
JSTOR is strictly full-text. This can make it useful when you're searching for something obscure and are interested in any mention of it; you can use it to bring up all everything that includes a mention.
It is NOT as useful when you have a long list of results, because it doesn't provide the same tools for sorting and filtering that MLA does.