Do The Dead Check Facebook?

Speculating on the condition of the deceased seems always to have been within religions' purview, and as such thanatology often has a place among scholars of religion. Over the last several months, I have experienced three deaths: that of a dear friend in November, that of my grandfather in December, and that of a schoolmate with whom I was acquainted just last week. Reflecting on these experiences and observing the behavior of others prompted me to raise a question which a friend actually came up with some time ago.