Freemium

WordPress is an open source content management solution based on PHP maintained by Automattic which is also being offered as hosted solution.

Facebook

Free

Facebook is the world's largest social network platform.

Blogger

Freemium

Blogger is a blog-publishing service that allows multi-user blogs with time-stamped entries.

Friendica

Open Source

Friendica (Friendika or Mistpark) is open source software for a distributed social network. The focus is on effective privacy settings and easy installation …

Squarespace

Commercial

Squarespace is a SaaS-based content management system-integrated website builder, blogging platform, hosting service and domain name registrar.

Textpattern

Open Source

Textpattern is a free and open-source content management system (CMS) based on PHP and MySQL.

PromoRepublic

Commercial

PromoRepublic is a social media marketing tool which helps freelancers, agencies, business create best social media content.

LiveJournal

Freemium

LiveJournal is a Russian social networking service.

Chyrp

Open Source

Chyrp is a ultra-lightweight ultra-flexible blogging engine with a fetish for birds and misspellings.

blogstrap.py

Open Source

blogstrap.py is a simple Blog using web.py and bootstrap3.

Twitter

Free

Twitter is a social media platform for broadcasting short messages to the world and followers.

Tumblr

Free

Tumblr is a microblogging and social networking website.

Ghost

Freemium

Ghost is an open source publishing platform which is beautifully designed, easy to use, and free for everyone.

Minds

Open Source

Minds is an open source social networking service.

Google Sites

Free

Google Sites is a structured wiki- and Web page-creation tool offered by Google as part of the G Suite productivity suite.

BuddyPress

Open Source

BuddyPress inherits and extends upon the integral functional elements of the WordPress engine including themes, plugins, and widgets.

Grav

Open Source

Grav is an easy to use, yet powerful, opensource CMS that requires no database.

Octopress

Open Source

Octopress is an obsessively designed toolkit for writing and deploying Jekyll blogs.

Craft CMS

Freemium

Craft CMS is a content management system for developers, designers, and web professionals that blends flexibility, power, and ease of use for clients.