It sounds like a horrible thing, if half the pictures in your friend list are of dead people you knew and cared about.

I can't bring myself to delete dead friends from my address book.

Maybe they'll call back. One day. maybe.

Sounds like a fantastic movie. Something M. Night might have done while he was still cool.

A way to revisit old memories, or a place to be constantly reminded of how much you miss someone.

There's a reason we dont bury the dead in our backyard.

Right, hah. Noone is buried in my backyard.

... That reassuring tone sounds suspicious !

yeah, you could almost validate reincarnation with it, by searching for past lives ;-)