There are already lots of smart people (Tent, Diaspora, etc.) working on opening up and decentralizing social networking, which is super awesome. The foundation

There are already lots of smart people (Tent, Diaspora, etc.) working on opening up and decentralizing social networking, which is super awesome. The foundation for that future is already being built, and you can help out: https://tent.io/contribute https://tent.io/contribute http://diasporaproject.org/get_involved http://diasporaproject.org/get_involved As for Single-Sign-On, Persona can already take care of that, today, for virtually any domain / browser combo. You can help out on that, too: https://github.com/mozilla/browserid https://github.com/mozilla/browserid The future will be even better if the Tent and Diaspora folks make it easy for their servers to also function as Identity Providers for Persona's protocol. FWIW, it seems like there's interest on both sides to make this happen.