Rare books, books from Meiji, newspapers, historical music, government documents, and dissertations

早稲田大学古典籍総合データベース
(古典籍) are rare books published before Meiji. Waseda is one of the best digital libraries in Japan. More than 300,000 volumes.

Kokubungaku Kenkyu Shiryokan (国文学研究資料館), aka Kokubunken (国文研). 30 databases of digital images, full text or indexes.

Login "University of Pittsburgh" as a partner Institution of Hathi Trust.

34,690 books are available in full text from Keio University Library.

Keio University and University of Michigan provided so many Japanese books to Google Books, but most of them can be accessed only by limited view.