Sites to avoid because of the possibility of bias or misrepresentation include:
-Wikipedia
-The History Channel website
-Sites like Yahoo.com, About.com
Using a search engine, such as Google, copy and paste the following search string:
digital collection site:.edu slavery
Many state libraries and organizations have digitized materials related to the their state.
The Library of Congress has assembled this list of state digital libraries. Search by state or check out the Multi-State option.
The list of websites below includes selected U.S. primary source collections, but there are many more available!
Many libraries, museums and organizations have posted digitized primary sources online.