Research Navi provides an introduction to key research techniques, reference materials as well as useful databases and websites, indexed by subject matter and resource category.

Japan Center for Asian Historical Records （JACAR） digitalizes and provides access through the Internet to Asia-related records dating from the early Meiji era to the end of the Pacific War in the possession of important collecting institutions of pre-war official documents, The National Archives of Japan, Diplomatic Archives of the Ministry of Foreign Affairs of Japan, and National Institute for Defense Studies of the Ministry of Defense.

researchmap is the only Web site that collects and provides scientific information on research institutes, researchers, research projects and research resources in Japan.

KAKEN covers research conducted with grants-in-aid for scientific research provided by Japan's Ministry of Education, Culture, Sports, Science and Technology (MEXT) or the Japan Society for the Promotion of Science (JSPS). It contains records of the data made available at the start of each project (adopted topics), and outlines of the project deliverables (research reports and outlines of deliverables).

Institutional Repositories DataBase (IRDB) is a database that collects and provides metadata of the contents registered in institutional repositories in Japan.

Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations.

In WARP the NDL has selectively collected Internet resources published within Japan, especially resources that are at risk of vanishing.
You can search archived websites in their original version. In addition, a part of core works extracted from the website such as online publications, white papers, yearbooks, etc. are assigned metadata and stored.

CiNii Books provides holiding information of Japanese academic libraries.

The database allows you to search and view articles from the Mainichi Shimbun's first issue to the present.

【Contents】
Newspaper Page Images: From the founding in Meiji 5 (1872) to 1999
Newspaper article text: 1872 to present
Weekly Economist: 1989–present
Mainichi Public Opinion Search: Public Opinion Survey Database

This is the digitization of all the study results of Japanese historical place names and local history study (51 volumes/ Heibonsha ) accessable from its WEB site.