The John F. Kennedy Library is a terrific resource for primary and secondary material on Jack's life and presidency. The site contains a wealth of transcripts, audio files, and photos as well as biographies of Kennedy family members, timelines, and descriptions of important events in Jack's career.
For information on the history of the Kennedy clan—from Honey Fitz to Teddy—this site features historical commentary, transcripts from seminal speeches, family background, photos, and suggested reading. The site is a companion to the documentary, The Kennedys, which aired on PBS.
An online archive of John F. Kennedy material, this site—created by the University of Virginia—maintains a collection of speeches, biographies, and transcripts from White House recordings.
Boasting a comprehensive array of declassified documents, this site offers an insider's look into the Cuban Missile Crisis and the decision-making process in the White House. With audio files of intelligence briefings and an in-depth chronology, this George Washington University-powered site is an engaging resource for those interested in the near-Armageddon of October, 1962.