The webmaster of The Leaky Cauldron is putting out a book this November on how it felt to experience the Harry Potter phenomenon. JK Rowling has a foreword in it, in which she points out that this is the first time she herself gets to see what happened, from the other side: "A great chunk of my own life has been explained to me."
(She also mentions unpacking her first book galleys to the songs of Oliver Boyd and the Remembralls, an experience she does not recommend. Having listened to those last two sad songs on their myspace playlist, I have to say I agree.)
^ I've been so busy lately, I haven't even had time to stop by a bookstore and pick up a copy of this. Anyone get one yet? How good is it?
I got it for Christmas and I really liked it. The way she writes it very interesting and it was a lot longer than I thought it would be. It touches on basically all aspects of the fandom. Read it if you haven't already.