Journal of National Essence 國粹學報全文資料庫 Full-text database of 82 issues of the journal ’Bulletin of National Essence’ 國繴學報 published between 1905-1911.
Integrated Search  For Rare Books 古籍與特藏文獻資源 It provides access to the old book database and special collections of the National Central Library both individually and through a common, integrated search interface. You can search in the following seven databases: 1.古籍影像檢索系統 (Rare Books Digital Images Database System) 2. 中文古籍聯合目錄資料庫 (Union Catalog of Chinese Rare Books Database) 3. 臺灣家譜聯合目錄資料庫 (Union Catalog of Genealogy Collection) 4. 金石拓片資料 (Bronze & Stone Rubbing Database) 5. 晚清期刊資料庫 (Periodicals in Late Qing Dynasty)
This database system contains the following 4 sub-databases: 1. Taiwan Periodical Literature臺灣期刊論文索引系統 For search for articles. A rather complete index for periodical literature published in Taiwan post WWII. 2. Directory to Taiwan Periodicals中華民國出版期刊指南系統 For search for journals information. This Directory collects mainly the journals, newspapers, and gazettes published in Taiwan. It also includes some selected academic journals published in Hong Kong and Macau, and some important periodicals and newspapers published before 1945 in Mainland China.
RECERCAT (Dipòsit de la Recerca de Catalunya) is a cooperative repository in which users can consult research literature from universities and research centers, such as articles, research works, final projects, congress talks, reports, working papers, etc.
arXiv is a free distribution service and an open-access archive in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. 
An electronic archive for self-archive papers in any area of Psychology, Neuroscience, and Linguistics, and many areas of Computer Science, Philosophy, Biology, Medicine, Anthropology, as well as any other portions of the physical, social and mathematical sciences that are pertinent to the study of cognition.
The Japanese Historical Map Collection contains about 2,300 early maps of Japan and the World.
The historical map collection has over 119,000 maps and related images online. The collection includes rare 16th through 21st century maps of North America, South America, Europe, Asia, Africa, Australia, Antarctica, the Pacific, the Arctic, and the World.
The AMICA Library with over 90,000 high quality art images - is one of the finest and largest art image database on the internet. Content for the on-line AMICA Library has been selected by prominent museums worldwide.
Gallica is the digital library of the Bibliothèque nationale de France (BnF), one of the major digital libraries available for free via the Internet. It provides access to any type of document: printed documents (books, press and magazines) in image and text mode, manuscripts, sound and iconographic documents, maps and plans.