Interesting article on what happens to your Facebook or MySpace personas after you're dead.
Here's a site dedicated to late MySpace users:
Facebook amended its policy a few months after Woolington died. "We first realized we needed a protocol for deceased users after the Virginia Tech shooting, when students were looking for ways to remember and honor their classmates," says Facebook spokeswoman Elizabeth Linder. The company responded by creating a "memorial state" for profiles of deceased users, in which features such as status updates and group affiliations are removed. Only the user's confirmed friends can continue to view the profile and post comments on it.