American Presidents: Life Portraits--This site profiles the personal and public lives of each of the presidents of the United States. The biographical information provided is brief, but resources for further study are included. The real strength of this site is its capability to search for notable sites associated with each of the presidents.

Biographical Dictionary--This dictionary includes more than 25,000 notable men and women who have shaped our world from ancient times to the present day. The dictionary can be searched by names, birth years, death years, positions held, professions, literary and artistic works, miscellaneous achievements, and other keywords. 

Biographical Directory of the United States Congress, 1774 to Present--Biographical information for all individuals who have served in the United States Congress and the Continental Congress. Biographies are also included for persons who have served as delegates to Congress from the territories of the United States. Using the drop-down lists, you can create useful lists, for example, a list of all U.S. Presidents who served in the Congress. 

Biography.com--Search or browse over 25,000 biographies of notable personalities from antiquity to the present. Entries include dates, career information, and alternate spellings/versions of the name, newer entries can include photograph, list of works, video, and related Web links.

Civil War Biographies--Contains biographies of some of the major personalities involved in the American Civil War. These biographies are accompanied by an image of the individual were possible. However, they make no attempt to provide information concerning the individuals entire life, merely their contribution to the Civil War.

National Women's Hall of Fame--Portraits and profiles of the close to two hundred notable women of the United States (living and deceased) inducted into the Hall of Fame since its founding in 1969.

Presidents of the United States--Internet Public Library provides this site containing background information, election results, cabinet members, presidency highlights, and some odd facts on each of the presidents. Links to biographies, historical documents, audio and video files, and other presidential sites are also available.