Blog-related web-based apps. The term "blog" is short for "weblog," which refers to an online journal. Blogs began as personal mini sites that people used to record their opinions, stories, and other writings as well as photos and videos.

b2evolution is an advanced weblog tool, i-e software allowing you to run your own blogs, newsfeeds or even photo stream. b2evolution is a medium scale CMS centered around the Blog concept, fully featured with multiple blogs, content/presentation separation, full user management, full internationalization (i18n), workflow management... and extending towards features normally provided by Wikis, Trackers or hierarchy driven CMSes.
Chyrp is a blogging engine designed to be very lightweight while retaining functionality. It is powered by PHP and has very powerful theme and extension engines, so you can personalize it however you want. The code is well-documented, and it has a very strong structure that's loosely based on the MVC design pattern.
Dotclear is an open-source web publishing software created in 2002 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.
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.
FlatPress is a blogging engine that saves your posts as simple text files. Forget about SQL! You just need some PHP.
HTMLy is an open source Databaseless Blogging Platform or Flat-File Blog prioritizes simplicity and speed written in PHP. HTMLy can be referred to as Flat-File CMS either since it will also manage your content. HTMLy uses a unique algorithm to find or list any content based on date, category, tag, or author, and the performance will remain fast even if we have thousands of posts and hundreds of tags.
Leafpub is an open source blogging platform with inline editing, handlebar templates, and a beautiful user interface. Introducing the first open source publishing platform to feature a true WYSIWYG editor. Say goodbye to boring forms and rich-text controls. Say hello to inline editing.
LifeType supports multiple blogs and users, media management, generation of standard content, clean URLs and support for subdomains. Writing articles is comfortable with the included state of the art WYSIWYG editor. Adding pictures and sound files (for Podcasting) is just a matter of browse and click. The Dashboard provides you with all the information you need every time you log in. Recent articles, comments and trackback as well as brief statistics get you updated about your blog immediately.
Movable Type is powerful enough for building websites, blogs, and communities on a single platform. It's easier than ever to publish and share information with Movable Type. Movable Type makes it simple to manage entire websites, start new blogs, and build an engaged community of readers and customers.
Nibbleblog Easy, fast and free CMS Blog The database used is based on XML files and this way it is not necessary to use MySQL or similar DBMS.
Nucleus CMS is a flexible and easy to install content management system, aka blog software. It helps you to publish a website and lets writers do what they are best at: writing items or articles, without having to worry about formatting and markup.
PivotX is free software to help you maintain dynamic sites such as weblogs, online journals and other frequently updated websites in general. It's written in PHP and uses MySQL or flat files as a database. PivotX is also a great tool to maintain more complex websites as well. Its powerful core and flexible template system make it easy for developers to adjust and extend. Whether you want an easy-to-use, robust blogging tool or are looking to push things to the max - PivotX offers the best of both worlds.
Pixie is a free, open source web application that will help quickly create your own website. Many people refer to this type of software as a "content management system (cms)", we prefer to call it as Small, Simple, Site Maker.
Pubvana Open Blog is now Pubvana. Pubvana is a re-brand of Open Blog v3. Built to be the easiest, most intuitive CMS to use for personal blogging & websites and small business websites.
Serendipity is a PHP-powered weblog application which gives the user an easy way to maintain an online diary, weblog or even a complete homepage. While the default package is designed for the casual blogger, Serendipity offers a flexible, expandable and easy-to-use framework with the power for professional applications. Casual users appreciate the way Serendipity's sophisticated plugin architecture allows you to easily modify both the appearance of your blog and its features. You can install more than120 plugins with just one click, instantly enhancing your blog's functionality. No need to edit code!
Textpattern is a web application designed to help overcome the hurdles to publishing online, and to simplify the production of well-structured, standards-compliant web pages. Textpattern is a flexible, elegant and easy-to-use content management system. It is both free and open source.
WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time. The core software is built by hundreds of community volunteers, and when you're ready for more there are thousands of plugins and themes available to transform your site into almost anything you can imagine. Over 60 million people have chosen WordPress to power the place on the web they call "home". We'd love you to join the family.