HubPress - A free, open source tool you can use to build a blog using GitHub Pages and AsciiDoc. HubPress is a web application that makes it easy for you to maintain a blog.

Microsoft Azure - Windows Azure and SQL Azure enable you to build, host and scale applications in Microsoft datacenters.

GitPress - A blog writing tool based on GitHub, designed for developers

Tumblr - A feature rich and free blog hosting platform offering professional and fully customizable templates, bookmarklets, photos, mobile apps, and social network integration.

Medium - Welcome to Medium, a place to read, write, and interact with the stories that matter most to you.

BlogEngine.NET - BlogEngine.NET is an open source ASP.NET powered blogging engine.