Friendica - Decentralisation - Privacy - Interoperability
X (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.
Gab - Gab is an ad-free social network dedicated to free speech.
pump.io - A stream server that does most of what people really want from a social network.
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!
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.