I stumbled over Doc Searls “re-mail” entry, where he reflects on an earlier entry, about RSS is opt-in authenticated Email and the answer he’s gotten on that.
Interesting! ZAPPATA started out as a collaboration tool that would use the technologies from the syndication world ( RSS/Atom, polling ) to build a decentralised collaboration tool. And we built it and it worked.
Doc Searls says:
Can those three verbs (notify, subscribe, syndicate) from RSS give us the relationship-support tools we need to solve both the identity problem and the email problem along with it? ...