White House Diary
You can pick any date from Kennedy's presidency and click on it. For instance, November 15, 1961, you get told that JFK's had a meeting of the National Secruity Council. There is also a picture with it. It is pretty cool! The day of his assassination includes a video of the Kennedys getting off the plane in Dallas. This is part of the John F. Kennedy Presidential Library and Museum's site.