Database of Grants-in-Aid for Scientific Research(KAKEN) is a public database which includes information on adopted projects, assessment, and research achievements from the Grants-in-Aid for Scientific Research(KAKENHI) Program.

The National Institute of Informatics (国立情報学研究所, Kokuritsu Jōhōgaku Kenkyūjo, NII) is a Japanese research institute located in Chiyoda, Tokyo, Japan.

The National Institute of Informatics (国立情報学研究所, Kokuritsu Jōhōgaku Kenkyūjo, NII) is a Japanese research institute located in Chiyoda, Tokyo, Japan.

e-Stat is a portal site for Japanese Government Statistics.

The National Diet Library (NDL) (国立国会図書館, Kokuritsu Kokkai Toshokan) is the national library of Japan and among the largest libraries in the world.