Primary Source Documents

• The Japanese Text Initiative, a collaboration of the University of Virginia Library Electronic Text Center and the University of Pittsburgh East Asian Library, presents a huge collection of Japanese texts in a convenient text format.
• The World Digital Library has Japanese documents from 500 to 1499 and from 1500 to 1699 (as well as other places and times).

Documents in Translation

• The Documents of Iriki, an online collection of English translations of documents relating to Iriki in Kyūshū dating from 1135 to 1867.

Online Sources

• Sengoku Daimyo, a collection of well-researched resources by Anthony J. Briant, also known as Baron Edward of Effingham
• Sindemann, Kerstin-Katja. “Japanese Buddhism in the 16th Century: Letters of the Jesuit Missionaries”. Bulletin of Portuguese/Japanese Studies vol. 2 pp. 111–133, June 2001.
• Yoshioka, Sachio. “History of Japanese Colour: Traditional Natural Dyeing Methods”. Colour: Design & Creativity issue 5 sec. 4 pp. 1–7, May 2010.

Bibliographies

• Bibliography of English-language Works on Premodern Japan by the Project for Premodern Japan Studies at the University of Southern California
• Period Japan - References for the Lazy by Erin M. Kelly