Several years ago, YAHOO came under scrutiny for not giving parents access to their deceased son's e-mail. Their son, a United States soldier, was killed in Iraq, and they hoped to retrieve his e-mails. YAHOO argued that giving the parents access would be in violation of their privacy policy. After negotiations, the parents eventually received access to their son's e-mails.
When putting together documents for my safety deposit box, this story came to mind. I decided to include a document with my user names, passwords, and access codes, for important websites I frequent; my e-mail, banking, investments, etc..,. If G-d forbid, something should ever happen, I would want my family to have access to my e-mail, especially since my e-mail could just as well be my auto-biography. All my e-mails are saved, and one after the other, they tell the story of my life, what I've done, what I'm doing, and what my thoughts are on different topics.