|
Creative Commons - copyright friendly |
|
Digital Public Library of America- primary sources |
 |
Gilder Lehrman Institute American History-
primary sources |
|
Library of Congress - primary sources |
|
morgueFile - free photo archive |
|
National Archives - Docs Teach primary sources |
|
PhotoPin - Free Creative Commons images |
|
Photos for Class - copyright friendly images |
|
Pics4Learning.com - copyright friendly images |
|
pixabay - free images |
 |
Smithsonian Flickr photos - primary sources |