Decentralisation of social networks: A protocol built on top of email. All your info would be held by your email provider (gmail, say), and when your friends l

Decentralisation of social networks: A protocol built on top of email. All your info would be held by your email provider (gmail, say), and when your friends log onto their email (yahoo, say) your new updates are download for them to view. If problems with getting email providers to abide by protocols specs aren't too large, I really could see this working.