Here are some links to websites that have photographs and prints for your assignments.

Prints and Photos Online at Library of Congress
Keyword searching, including historical posters.

American Memory Project
American Memory includes free and open access through the Internet to both written and spoken words, sound recordings, still and moving images, prints, maps, and sheet music. The access includes over 100 collections and more than 9 million individual items. Information is included about how to cite electronic sources on the help page.

World Digital Library
Primary sources from around the world accessible using keywords, timelines or universities.

Life Magazine Photo Archive
Search millions of photos from 1750s to today in the LIFE photo archive. Most were not published and are now available
through the joint work of Google and LIFE.

New York Public Library Digital Gallery
Browse names or subjects with open access to over 700,000 images digitized from the NYPL collections. Includes manuscripts, historical maps, posters, prints, photographs and more. "Some images may be subject to third party rights such as copyright and/or rights of privacy/publicity according to the site."

Civil Rights Digital Library
The Civil Rights Digital Library features a collection of primary sources including unedited news film and educator resources relating to the Civil Rights Movement.

Chronicling American History: Historic American Newspapers
Sponsored by the National Endowment for the Humanities and the Library of Congress as part of the National Digital Newspaper Program chronicling newspaper pages from 1860-1922. Find information about American newspapers published between 1690-present.