Q. Where should I search for primary sources?

First you have to know what a primary source is before you know where to search. See this FAQ to learn more.

Many primary source materials are included in some of the Library's subscription research databases such as Academic Search Premier, a multidisciplinary collection.  Also, Issues and Controversies in History, is a database that includes overviews of history topics, and related primary sources.  These databases allow you to limit your search to primary sources. 

The Library of Congress provides access to a wide variety of primary sources arranged in collections by topic.