Rule 31 - make sure someone knows how to manage your digital estate after death
I have written a number of times on dealing with death and the relationship to your digital footprint
Rule 31 from my 31 new social rules for living in a digital age is about finding someone you trust to ensure that your digital estate can be managed. Digital Estate Planning appears to be growing AssetLock.net, Legacy Locker, Deathswitch.com and
My Webwill aim to address the issues raised by enabling online users to securely store online information like logins and passwords to be passed on to relations after death - however you need to tell someone and Excel does work as a cheap alternative.
On a related but different slant there is E-Tomb which is a solar powered tomb with bluetooth to enable relatives to visit your online profiles and memories after you passed away.