What happens to someone's Facebook page after they die?
Often, the page stays "live," gradually assuming the dimensions of a memorial site.
"It just gets filled and filled with comments," said Jay Wagner, who conceded that the practice can feel slightly macabre. "That's creepy."
But imagine getting a birthday greeting from beyond the grave.
If the dead person has set up Facebook to wish their friends "Happy Birthday" automatically, it will continue to do so, even though the sender won't be celebrating any more birthdays.
And it can be very difficult for the family of a deceased person to take control of their Facebook account, said Houston entrepreneur David Harris.
"When that happens," explained Harris, "there's no process in place that allows that family to know what to do. They don't know the passcode, they don't know how to get in it, so there's no way for them to shut it down."
Harris, CEO of Assets In Order, started a business called Legacy Lockbox.
You can sign up for a free account and, upon your death, it will send out your passwords to anyone you designate.
A paid account lets you store and send electronic documents like wills and insurance paperwork.
For more information, visit http://www.assetsinorder.com/.