Writers of Potter fan fiction - stories that use Ms. Rowling's characters in new or expanded plots - are particularly tense.
Interesting piece from the Technology section of the NY Times about Harry Potter fans using sites such as Fan Fiction to fill the void while they waited for J.K. Rowling to bring out her version...
Also a bit about the use of Fotolog by a couple who are posting photos from an album they found in a junk shop in Brooklyn. The post images and then folks comment and make up stories about the images.
Hundreds more photos remain to be posted, so Natalie's online life will continue to unfold even as the person the site calls Real Natalie remains a mystery.