After Joan Rivers posted to her facebook page an endorsement of the Iphone 6 10 days after she died I thought it was the first sign of the Rapture. But on further investigation it was clearly a scheduled post that never got deleted. Or perhaps it was on purpose. I would not put it past the marketing geniuses at Apple. But luckily for the rest of us, Joan is not the only celebrity who maintains her social profile from beyond the grave. Here are a few of my favorites. I would suggest following them all. You never know what they might say.