Title: Internet East Asian History Sourcebook
This collection of primary sources is remarkable for both the scope and the depth of its offerings. There are the notes of Matthew Perry about landing in Japan and a speech by Kaiser Wilhelm II to the German soldiers going to China during the Boxer Rebellion. These are just two among many documents included on the site.
Title: History of Asia in the Eighteenth and Nineteenth Century
Short histories of Asian countries are accessible from the list on the right side of this page. There are also maps of Asia from various periods: 1789, 1871, and 1914. In addition to the maps and short histories, there are links to other sites that have articles and documents that pertain to each country during this timeframe.