On the macabre side of things, I know. But build an audio and/or video site where I can post things that aren’t ever shared until a certain set of things happens (or doesn’t happen). Like maybe you get notice I am dead – based on my preferences you can now release all of those videos to YouTube that I did with Paris Hilton.
Or if you DON’T hear from me (I don’t login for example) in a year (or whatever time frame I choose) you execute all of my instructions for dealing with my online accounts (Facebook, Live.com, and 500+ others). Maybe I want you to close the account. Maybe I just want you to post one final blog post saying something like, "I won’t be posting for a while… something came up"
And maybe I want you to wait a year, or five. And then send some content to my kids.
My idea, you build it. I get a free account.