While I was searching for websites that were related to East Asia, most of what I found seemed like newspapers, etc. This site, though, has information for teachers who would like to teach more about Asia in their classrooms. There are timelines, primary sources, and online museum resources. The website is searchable in all of the areas, and is geared towards students and teachers. There are printables and maps, and lessons (oh my!). Sounds like a good place to also supplement what we know and have learned from this Institute.
The website is as follows:
http://afe.easia.columbia.edu/