Best for locating older materials in the public domain. Has significant Japanese holdings. Those materials can be downloaded as PDFs. Includes full text access to *some* copyrighted materials. Pros: Very often this will be the only database with full text access to a book. Public domain items will be downloadable. Cons: Browsing and locating exact page numbers can be slow, especially if trying to flip through many pages. Scan quality can sometimes be poor.
Searches across all libraries in Japan for Books and Thesis. Also searches scholarly journal articles and will provide full text access if it is open access. Set the interface to Japanese to see Japanese titles. When searching in the interface, many articles will have English titles but the contents will be Japanese.