Baylor University: JFK Materials
From the W.R. Poage Legislative Library at Baylor University, this website contains a plethora of information and materials all about John F. Kennedy.
According to the website, "The JFK Materials collection began in 2004 with the acquisition of the papers of Penn Jones, Jr. from his friend, Bob Platt. These papers included correspondence, manuscripts, cassette tapes, video tapes, magazines, photographs and various publications." Browseable and searchable.