I would like to see some sort of standard for a document store where others can “send” documents to me. Much like an e-mail account but with a handshake of some sort where I can grant write-only access to others.
Then I would grant access to my doctor such that she could store (copies of) my journal on my POD and send personal letters to me. I could also grant access to my lawyer, the driver’s license office and so on.
It should be easy for others to locate my private document box and notify me, for instance by mail, of either a request for access or new content.