US National Archives
Nara: Teaching With Documents: Beyond the Playing Field: Jackie Robinson
The National Archives and Records Administration (NARA) provides several primary source documents pertaining to Jackie Robinson's period of civil rights advocacy, as well as corresponding lesson plans.
Library of Congress
Loc: America's Story:jackie Robinson Throws Opening Pitch
Jackie Robinson was not only one of the all-time great baseball players, he was the first African American to play in the Major Leagues. The Library of Congress presents a site with information and photographs of this amazing man.