For research into English Education and Composition, the MLA International Bibliography has some materials, but is far from comprehensive. See the list of databases below for other ideas of where to research topics in those areas.
I love Library Search tool (search box on the library home page) for film. It does a great job of pulling together articles that you otherwise would need to search 5-10 databases to find. You may want to remove newspaper and magazine articles from your search results, otherwise they can overwhelm your results.
We do not have any databases that focus on articles about journalism, so Library Search is your best bet for this type of research.
You can search Library Search for these as well, but we also have several specialized databases that include both modern and historical newspaper and magazine articles. Here are a few of my favorites:
Because a Digital Humanities' project can be created on almost any topic imaginable, the best starting point for topic-based research is going to be our interdisciplinary Library Search tool.
If you are looking for tools to use in the creation of your project, try this page:
Scholarship on young adult and children's literature is published in multiple disciplines, so the Library Search tool is the best bet for finding it.
For teaching young adult or children's literature, see the tab for English Education resources.