Japan Knowledge is an online database containing the Nihon daihyakka zensho (Encyclopedia Nipponica) and more than other 30 titles in the humanities and social sciences, including dictionaries, encyclopedias, economic journals, and books (Toyo Bunko series).
Major databases contained
JapanKnowledge Lib "Kokushi daijiten (Encyclopedia of Japanese History)", "Nihon kokugo daijiten (Shogakukan’s Japanese Dictionary, Second Edition)", "Kadokawa Kogo Daijiten (The Great Dictionary of Archaic Japanese)", "Nihon rekishi chimei taikei (Compendium on Historical Place Names of Japan)", "Nihon daihyakka zensho (Encyclopedia Nipponica)", "Gendai yogo no kiso chishiki (Basic Modern Japanese Terms)", "Random House Ei-Wa daijiten (Shogakukan Random House English-Japanese Dictionary)", "Toyo Bunko series", "Shinpen Nihon koten bungaku zenshu (New Collections of Japanese Classical Literature)", "Shinpen Kokka Taikan", "Dai Kanwa Jiten (Great Chinese-Japanese Character Dictionary)" etc.
JKBooks "Taiyo (The Sun)", "The ORIENTAL ECONOMIST", "Jinbutsu Sosho", "Bungeishunju Archives", "Bungei Kurabu; Meiji-hen", "Dai-ichi Koto Gakko Koyukai Zasshi", "Fuzoku Gaho", "Gunsho Ruiju series", "Kobunso Taika Koshomoku", "Shintei Zoho Kokushi Taikei", "Shiryo Sanshu (First phase; from the Heian and Kamakura periods in the ancient records section)"