Anchor is a super-simple, lightweight blog system, made to let you just write.
b2evolution is an open-source blog/CMS engine with a focus on multiple blogs support, including evolved blogs like Photo Albums, Community Forums or Online Manuals.
Blog.com Write your ideas, now. You'll be up and running in under a minute. Posting new content can be done in two clicks. Life is overcomplicated as it is. We add simplicity.
Free weblog publishing tool from Google, for sharing text, photos and video and more.
The Easiest Website Builder -- Drag n Drop Editor, Free Stock Photos, Fonts, and More. Bravesites / Bravenet
Dotclear is an open-source web publishing software published in 2003 by Olivier Meunier. A one man's project at first, Dotclear soon gathered a team comprising different personalities with various backgrounds. The project's purpose is to provide a user-friendly tool allowing anyone to publish on the web, regardless of their technical skills.
Drupal is an open source content management platform powering millions of websites and applications. It's built, used, and supported by an active and diverse community of people around the world.
eggBlog is the free php & mysql blog software package, allowing you to create your own online website, journal or weblog (blog) using your own web-space.
ExpressionEngine is a software development company based in Bend, Oregon, which primarily develops applications written in PHP. The company is privately owned and to date has not accepted any venture capital funding.
Facebook is a social networking platform that allows you to connect and share information with your friends, family, co-workers, and other acquaintances. A blog is a form of journal on the Internet that allows you to write posts and entries about your life, hobbies, opinions, and other topics that interest you, that's why Facebook personal pages fall under blog platforms.
FlatPress is a new blog engine. Written from scratch, it features same plugin interface as WordPress and plain compatibility with SimplePHPBlog stored entries. Plus, a template based theming engine, and full conformance to web standards and usability.
Geeklog is an open source application for managing dynamic web content. It is written in PHP and supports MySQL, PostgreSQL, or MS SQL as the database backend. "Out of the box", Geeklog is a CMS, or a blog engine with support for comments, trackbacks, multiple syndication formats, spam protection, and all the other vital features of such a system.