Asia for educator is an excellent site that offers many resources. The site is broken down into regions and time periods, it makes it easy to access. The site has timelines, key points, primary sources and lesson plans. I will be using this site when planning my lesson plans. It has material from 4000 BCE to present day. It also has a wide selection of women history.
http://afe.easia.columbia.edu/main_pop/ps/ps_china.htm