I've passed this info on to virtually everyone I know, but must post it here anyway:
Last week I heard about a site filled with Salinger's uncollected writings--early stories that he published in magazines like The Saturday Evening Post (and from personal experience, I must say that I have an overwhelming sense of satisfaction that they're finally out there, rather than moldering away in CS's archives!).
In addition to e-texts of Catcher, Nine Stories, and Franny and Zooey, there is (quietly sitting at the bottom) Seymour's letter home from summer camp at the venerable age of seven: "Hapworth 16, 1924." It's also the last story Salinger has published (so far...).
For more on Salinger and the moronic evisceration of Franny and Zooey (by those who completely missed the entire point), see Janet Malcolm's brilliant essay, "Justice to J.D. Salinger".