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Another type of secondary source is a scholarly journal article. These are much shorter than books, but also much more specific. You won't find a complete biography of Marco Polo in a scholarly journal article, but rather an analysis of a specific part of his life or work. Scholarly journal articles often have a thesis and a specific point of view, which is something to keep in mind as you read and take notes.
Here are several databases that contain scholarly journal articles:
This database provides access to a comprehensive selection of prestigious humanities and social sciences journals, including Mexican Studies, US Latino & Oral History.
Secondary Sources: Websites
You can also find some journal articles and secondary sources on websites.
However, not all websites are trustworthy and worthy of citation in your academic work. Be sure to consider who is responsible for a website, when and where it was created and updated, and for what purpose. Always ask your teacher or a librarian to vet a website before citing it in your paper.
Below are some websites with secondary source-type information that you can use in your research: