Digital Vaults

The National Archives has an amazing site where you can look at tons of images and then find related ones to help create a lesson plan.   For example above is one from the Great Depression. It is a letter from a number of men essentially asking that the women be fired to make room for unemployed men.   If you go to the search engine, you can find lots of primary resources for any US topic.  

I heard about the site from Richard Byrne of FreeTech4Teachers.  If you like it, you might want to consider taking our three session class.  Go here for details.