Publishers

Addendat
Blogging tool for those who don't like Javascript or whose servers are running SCP, which makes using other blogging tools difficult or impossible.
http://deekoo.net/technocracy/addendat/

Antville
Based on an open source project aimed to the development of an "easy to maintain and use" weblog-hosting system. It can host unlimited blogs.
http://www.antville.org

ApeJet Blog
Simple open source tool for servers running PHP. No database needed. Produces RSS, archives, and categories.
http://www.apejet.org/sites/apejetblog/

b2
A news/ weblog tool (aka logware). Requires a server that can run PHP4, and a MySQL database. Freeware.
http://cafelog.com

b2evolution
Full featured PHP/ mySQL weblog tool. Supports multiple categories, sub-catgeories, multiple weblogs, skins, statistics, comments, anti-spam filters.
http://b2evolution.net/

Blog Script
A simple, command-line based utility for maintaining personal weblogs. It runs easiest on Unix-like platforms, such as Linux.
http://metastatic.org/source/blog/

BlogBinders.com
Create a bound book out of your live journal, blog or weblog.
http://www.blogbinders.com/

BlogCFC
Open source (Apache License v.2) weblog software written in ColdFusion MX.
http://blogcfc.riaforge.org/

BlogCFM
An open-source blog application written in CFML, supporting both Coldfusion MX 6.1+ and Bluedragon Server 6.1+.
http://www.blogcfm.org

BLOG:CMS
Blogware requires PHP and MySQL. Features include weblog, forum, wiki, news aggregator, and photo gallery.
http://blogcms.com/

BlogFace
A weblog product for the Zope application server.
http://www.zope.org/Members/karl/BlogFace/BlogFace

BlogLite
A basic, easy to use weblogging suite built with PHP and MySQL. 2 scripts, 2 HTML templates. Web journaling script.
http://phplabs.com/scripts.php?script=BlogLite

Blog.Mac by Largemouth Software
Create, manage, and publish a weblog on Mac OS X using the .Mac service.
http://www.largemouthsoftware.com/blogmac.html

BlogMax
Emacs elisp package for maintaining a web log.
http://www.billstclair.com/blogmax/

Blogoommer
A standalone java application for editing, organizing and publishing weblogs by FTP. Generate a weblog site with calendar-based navigation, links, and RSS 1.0 and 2.0 news feeds.
http://blogoommer.sourceforge.net/

BlogWizard
Allows you to create, edit, and publish your blog entries to your server. Works with all major weblog services that support the Blogger xml-rpc engine.
http://www.lionhardt.ca/bw/

blojsom
A lightweight blog package written in Java that is inspired by blosxom. Includes highly configurable flavors, templating, plugins, and the ability to run a multi-user blog.
http://blojsom.com/

Blosxom
Lightweight blogging application written in Perl.
http://www.blosxom.com/

boastMachine
PHP/MySQL powered blogging platform.
http://boastology.com

Broadcast Builder
Create RSS channels and weblogs. Windows.
http://www.lionhardt.ca/bb/

Bs.post
A minimal news/ weblog system using PHP4 and SQL.
http://code.gushue.net/bspost/

CF Blogger
A blog application built with ColdFusion. This is an open source project. Submissions for templates or ideas are welcome.
http://www.daydreaminc.com/personal_blog.cfm

cLoG
Open source blog system for people who have acces to a provider with php and mySQL capabilities.
https://sourceforge.net/project/showfiles.php?group_id=72934&package_id=122641

CocoBlog
Open source blogging package based on Apache's Cocoon and Xindice products.
http://cocoblog.sourceforge.net/

Easy Blogs
Desktop-based journal publisher stores all information on the local computer and uploads content via FTP. Multiple templates and RSS feed available.
http://www.easyblogs.com/

EasyMoblog
An open-source platform for personal weblogs and moblogs. It allows the creation of customizable and easy-to-use weblogs. Update just by sending e-mail messages.
http://sourceforge.net/projects/easymoblog/

Farook.org: Blog
Maintain a weblog on any site which supports FTP while keeping all your entries on your own hard disk for safety. WYSIWYG HTML editor.
http://www.farook.org/bytes.htm

Geeklog
Free open-source blog tool. Runs on many different operating systems and uses PHP4 and MySQL.
http://www.geeklog.net/

GoBlogGo
Post pictures from a camera phone. Moblogging photoblog home.
http://www.gobloggo.com

Greymatter
Weblogging software requires Perl 5 and knowledge of HTML.
http://www.noahgrey.com/greysoft/

Habari
Open source blogging platform written in object-oriented PHP5. Site includes project news, download links and documentation.
http://www.habariproject.org/

JournURL
Integrates blogging and forum features to create a communal content management system.
http://www.journurl.com/

Kit
Software package for use with Radio Userland, including search, news aggregation, file uploader, and other tools.
http://markpasc.org/code/radio/kit/

Laconica
Open source microblogging application, aiming to be an alternative to Twitter. Provides a list of existing servers using this software, documentation and information for developers.
http://www.laconi.ca/

MarsEdit
A multifeatured weblog editor for Mac OS X (10.3 or higher) by Red Sweater Software. Site includes screenshots, features list, and trial download.
http://www.red-sweater.com/marsedit/

MeYou
Publish your own blogs with your PC or your mobile Java phone. Community directory available.
http://www.meyou.com

MKDoc
Web site building, serving and content management tool that has been designed to encourage the use of good information architecture and the production of accessible web sites.
http://mkdoc.com/

Monaural Jerk
Free, open-source PHP/MySQL weblog system. Includes calendar navigation, "edit this page", searching, channels, RSS, XML, tell-a-friend, and spider-friendly URLs.
http://monauraljerk.org

MyTripJournal.com
Easy-to-use blogging tool with mapping system designed specifically for travelers. Post text and photos. Includes a notification system to let your friends know when an update is posted.
http://www.mytripjournal.com/

Nanoblogger
Small weblog engine written in Bash.
http://sourceforge.net/projects/nanoblogger/

NewsBruiser
Free, open source weblog program that focuses on ease of use.
http://newsbruiser.tigris.org/

Nucleus CMS
A PHP/SQL blogging tool which resides on your webserver. Includes multiple weblog capabilities, and RSS syndication.
http://www.nucleuscms.org/

Open Journal Project
Free, perl-based open source journal script.
http://www.grohol.com/downloads/oj/

Particle Blogger
Server-side blogging tool written in PHP with integrated RSS feed and static URLs option.
http://www.particlesoft.net/particleblogger/

Pebble
A light weight, open source, blogger that is written as a web application to run inside J2EE web containers.
http://pebble.sourceforge.net/

Personal Weblog
A PHP/MySQL include file for adding a weblog to a home page.
http://www.kyne.com.au/~mark/software/weblog.php

PersonalBlog
Light-weight personal blogging application that is suitable for installing on a host provider. It's written in JAVA and uses a variety of J2EE technologies.
http://sourceforge.net/projects/personalblog

PHP-Blogger
Open source script for publishing simple entries that may include pictures uploaded through the administrative interface.
http://www.phpblogger.com

PHPosxom
PHP rewrite of Rael Dornfest's Blosxom.
http://sourceforge.net/projects/phposxom/

Pivot
A customizable weblog tool written in PHP and using flat files as the data storage.
http://www.pivotlog.net/

PivotX
The next generation Pivot, a customizable weblog tool written in PHP and using flat files or a SQL database as data storage.
http://www.pivotx.net/

Pocket Blog
Pocket PC application for managing weblogs that support the Blogger API. Works offline, posting entries when internet connectivity is available.
http://www.pocketblog.com/

Presstopia
Open source ASP.NET weblog application. Supports MySQL, MS Access, MS SQL Serve, Atom 0.3, RSS 2.0 feeds, multiple authors, comment, trackbacks, update pings.
http://presstopia.com

Python Desktop Server
An open source weblog, news aggregator and light weight desktop CMS system.
http://pyds.muensterland.org/

Radio UserLand
Weblog software for individuals, educational institutions, and corporations. Free trial available.
http://radio.userland.com/

Roller Weblogger
Open source weblogger written in Java and based on Struts, Velocity and Castor. Not recommended for beginners.
http://www.rollerweblogger.org/

Scoop
Free collaborative media software for running community web logs . Requires Perl, mod_perl, and MySQL.
http://scoop.kuro5hin.org/

Serendipity
An open-source project for creating a simple CMS for blog authors.
http://www.s9y.org/

Serendipity: Creating a website using S9Y
Collection of tutorials, articles and links about the weblog software.
http://www.squidoo.com/serendipity-blog

serwatka.net
Articles and information for weblog development with the eZ Publish CMS.
http://serwatka.net

SimplyBlog Software
Tool designed to create weblogs on corporate Windows based Intranets.
http://www.kamat.com/community/software

Slashcode
Open Source software for creating Slashdot-style discussion weblogs. Provides links to the software, and help for setting up and running the software.
http://slashcode.com/

SnapLog Photo Blogger
A one click photo weblog publishing application that sends updates to a site via FTP.
http://snaplog.com/

SnipSnap.org
Weblog and wiki system written in Java.
http://www.snipsnap.org

Somery
PHP-based 'blog software.
http://somery.danwa.net/

tBLOG
Integrate fully customizable weblog templates, with any website. Add calendar, search, link management, voting, and comment modules.
http://www.tblog.com/

telnet7 Bloggy
For websites that use free webhosting services.
http://t7_bloggy.tripod.com

Thingamablog
A cross-platform, standalone application for authoring and publishing weblogs. It will work on any platform on which Java can run. Thingamablog does not require a third-party blogging host, a CGI/PHP enabled web server, or a MySQL database. The only requirement to setup and manage a blog is FTP access to a web server.
http://thingamablog.sourceforge.net/

Traction Software
Enterprise weblog software. System for capturing and managing knowledge in the course of a communication or business process.
http://tractionsoftware.com/

Trellix
Client-side windows based blogging software. No HTML experience required.
http://danbricklin.com/log/byol.htm

Vine Type
A website management system that requires no database nor scripting lanaguage installation. Free for non-commercial use.
http://vinetype.com

Wheatblog
A lightweight, open source, customizable blogging and content management solution powered by PHP and MySQL or SQLite.
http://wheatblog.sourceforge.net

Zomplog
An easy to use weblog application which uses php and MySQL.
http://www.zomp.nl/zomplog/

ZuZuSoft
CGI/Perl-based script for publishing a journal through text files rather than a browser interface.
http://erasable-ink.tripod.com/journalscript/index.html