National Archives (http://www.archives.gov/index.html)

• Presidential Libraries (http://www.archives.gov/presidential_libraries/index.html)

American Memory  (http://memory.loc.gov)
 

Cal Heritage (http://sunsite.berkeley.edu/CalHeritage)
 

California Digital Library (http://www.cdlib.org)

• Online Archive of California (http://www.oac.cdlib.org)

The U.S. Government Official Web Portal (http://www.firstgov.gov)