The issue raises another problem, which is an extension of something that has been brought up on Slashdot before. What do you do to make sure that people can continue to access your data once you're no longer here? In some cases it's even more dificult, what happens to the servers when the person who knew the password is no longer here. Boone's post raises the suggestion that you might want people reading your email, but what about the server where your blog lives?
One possible solution is to keep an envelope sealed with common passwords in a safe place such as a safety deposit box. Of course this is only as good as the other people who may have access to the box and only if they will continue to have access. And of course it depends upon trusting those with access. It may be possible to keep them at a trusted attorney or similar location.