War rations is a concept that is difficult for students to understand. This site uses a painting of people shopping at a grocery store during WWII and makes it interactive. Visitors to the site can examine the picture and click on details to learn more about what is happening in the photo. For instance, it shows pictures and explainations of actual ration booklets, propaganda, posters, grocery prices, etc. There are also nice "Did you know" buttons to learn more and all the primary sources can be downloaded and printed as PDF's.
Easy to navigate. Primary sources include court cases, historic newspapers, landmark document, and social history. Uses drop down for topic selection. Also includes lesson plans, multimedia, science and technology.
I liked the educational direction this site provides for teachers. Besides the documents, this site provides lessons using the primary documents, and training on best practices for their use.