Library of Congress: http://www.loc.gov/index.html

Picturing America: http://picturingamerica.neh.gov/

Chicago History Fair: http://www.chicagohistoryfair.org/

Chicago History Museum (Great Chicago Stories): http://greatchicagostories.com/

The HistoryMakers: http://thehistorymakers.com/

ABC-CLIO (username and password is 6130): http://databases.abc-clio.com/

National Archives: http://www.archives.gov/

iCivics.org: http://www.icivics.org/

Colonial Williamsburg: http://www.history.org/