What happens to this blog when I die, when I no longer pay the monthly bill? What happens to my emails when my card no longer covers the autopay on the account? What happens to the gigabytes of archives I have tucked away on Dropbox when the account is not renewed? Unless I provide for their continued maintenance in my will—assuming I have any estate that outlives me—they will go away, gone forever.
Even the free services—GMail, Flickr, Tumblr, Facebook, Twitter—could just quietly drop the accounts after we pass on. There's obviously a business there: curation of our collective individual histories. But so far, companies like Google, Facebook and Twitter want no part of it.
This isn't just about sentimentality or attachment to our intangible cultural legacy. What about digital assets with real value—music we create, videos we produce, books we write? Copyright protects us (somewhat) from piracy, but not for preservation. As we ourselves become worm food, our digital tracks, so much a part of our lives, disappear into the ether.