Mastodon!

Diaspora is a federated social networking service, designed to be a more privacy-aware alternative to Facebook . Share what you want, with whom you want.

Friendica is a distributed social network application which runs on commodity hosting platforms - PHP/MySQL/Apache. (If you can install Drupal or Wordpress you can probably install Friendica)

GNU social is a continuation of the StatusNet project. It is social communication software for both public and private communications. It is widely supported and has a large userbase. It is already used by the Free Software Foundation, and Richard Stallman himself.

Ello is a simple, beautiful, and ad-free social network created by a small group of artists and designers.

First of all it is the best place to make or invite your friends and family and a place where you can chat or share great quality contents from Publishers.On top of that you can earn money because you help the company to grow.

Chttr.co is a social network with 1. openness — everything is public 2. effortless discussions 3. sensible line on free speech.

Social Number is the first ever anonymous social networking website which gives you the leverage to express yourself freely. It allows the users to interact with the people anonymously using a unique number. Sign up now and connect with people across the globe.

SocialPage, INC was made by a middle school kid who thought that people should know each other better. He came up with this idea because he was bullied at school a lot, where it came to the point that kids started thinking that he was not alive anymore.