E-Resources Dai Nihon Teikoku Kenpō
国立国会図書館 資料に見る日本の近代 - 開国から講和まで100年の軌跡
This website is part of the National Diet Library's online exhibition project. It presents images of various historical documents and materials since the Meiji Restoration. The website is divided into five sections, corresponding to the different periods of Japanese history from 1868 - 1945. In each section, users may view many constitution-related materials, such as the "Proposal for Drafting a [Meiji] Constitution (Rikkokukengi)" – written by Miyajima Seiichiro, the Sain legislator in 1872. The collections are small in quantity but of a high quality. The website easy to navigate and is also available in English.
国立公文書館 National Archive of Japan デジタルアーカイブシステム
This website specializes in providing the Japanese government’s official documents as well as descriptions of books owned by the Cabinet Library. The website is English-friendly and contains a large amount of documents in English. It also presents many digitized images of large-sized or colorful materials, including images of the Important Cultural Properties (重要文化財).