I still can't get over how great this book was. If you like King you should pick it up. For all you audiobook listeners, hopefully we'll get it in that format too. For now here's a link (I hope) to an interview that he did. I listened to the first ten minutes of it and found it interesting. I need to go back and listen to the whole thing. One question the interviewer asked King was about his choice of title. King explained that to his generation, November 22, 1963 was like the current generation's 9/11. It's just a date that everyone recognized and immediately knew what it referred to. I'm sure I'll learn more interesting facts when I finish listening to the interview.
Stephen King interview on Q