Ages ago there was the Diaspora project which was basically that, except it didn't take off. - Source: Reddit / 6 days ago
I heard there's a decentralized privacy-respecting social network called Diaspora that's based on Google+. I never tried it myself, though. - Source: Reddit / about 17 hours ago
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
Oxwall - Oxwall® is an open source mobile-friendly community website platform that is suitable for brand communities, interest-based social networks, and other online community projects. try demo Get Started. slide02 .
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
Minds - The open-source, encrypted social network that expands your reach for using it.
Twitter - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
HumHub - HumHub is a free social network software and framework built to give you the tools to make teamwork easy and successful.