National Archives website with a lot of great resources.  Lesson plans & activities to help planning lessons around primary sources, school tours and activities, links with help to use primary sources.  There are also featured activities and resources.  Not to mention professional development opportunities!

U.S. History Primary Sources for National History Day

Choose the topic about 9/11 you want to search for, grade level and subject to find information and primary sources about the September 11 attacks. 

LOVE this website.  Letters from most American wars from Revolutionary War to Iraq.   Each letter appears on the screen and includes a recording of the letter read aloud.  Very powerful to hear the types of details soldiers wrote.  Each page also includes information about the solder. 5 categories to choose from with many letters in each.  The categories are enlisting, comforts of home, love, combat, and the end of the war.

Online access to Federal Government documents.   Picture of the documents and a description.  Great for teaching early American history or learning about government.

Reproducible copies of primary sources for teachers to use in their classrooms.  Website is well organized by topics and dates with many primary sources to use in classrooms or in the library to help students with research. Documents from the holdings of the National Archives of the United States.

Civil War Primary Documents, Personal Diaries, Journals, Letters, Cartoons, Art, Images, Poetry, Literature, & Music.  

Group of primary sources put together by the College of Education at the University of Florida.   Made for educators who value the use of primary sources in their classrooms.

Images are taken from the New-York Historical Society's archive collection of primary sources.  Includes photographs, letters from soldiers, drawings, and posters.  Excellent website for teaching or researching about the Civil War.

Sets of primary sources about many different topics