Blogilo
Blogilo is kde based software but also available for gnome use you can download blogilo by ubuntu software center the main feature of blogilo are
Blogilo is a Free/Open Source Blogging client, focused on simplicity and usability. Currently featured:
A full featured WYSIWYG editor + An HTML editor. Previewing your post with your blog style! Like when you are visiting it at your blog.Support for Blogger1.0, MetaWeblog, MovableType (Wordpress supports All of these!) and Google GData (used on Blogspot.com blogs) APIs!
Support for Creating/Modifying/Deleting posts.
Support for creating drafts and scheduled posts!
Support for uploading media files to your blog (Just on supported APIs e.g.
MetaWeblog and MovableType).
Support for fetching your recent blog entries.
Support for adding Images to post from your system. It will upload them on Submitting post to blog (Just on supported APIs e.g. MetaWeblog and MovableType).Support for saving local entries before publishing.Saving your writing copy to prevent data loss, at configurable intervals.Internal auto spell checker. (KDE spell checker used so most of languages are supported).
This package is part of the KDE PIM module.
BlogGtk
BloGtk is gnome based blogging software it has simple user interface but it has many tool that used in editing of web pages
BloGTK is a weblogging client that allows users to post to their blogs without the need for a web browser. It features the following:
Connects with blogging systems like Blogger, Movable Type, as well as any system that uses the MetaWeblog API.
Supports advanced editing of posts including custom HTML tags and offline post saving and editing.
Supports basic HTTP proxies.
Blog entry poster
For a fully-fledged feature-rich blog editor, I won’t recommend this, but if you are looking for a simple editor that allows you to write and publish quick posts without any hassle, then Gnome Blog Editor is the best for you. Gnome-blog is a panel object (aka applet) that can post to weblogs using bloggerAPI, advogato API, MetaWeblog API or LiveJournal API.It notably works with Blogger.com / Blogspot.com, Advogato.org, Movable Type, WordPress, LiveJournal.com and Pybloxsom.
Thingamablog
Thingamablog is more than a blog editor. It is in fact a blogging software that allows you to create, edit, publish and maintain your blog from your desktop.
If you already own a third party web-hosted blog (such as WordPress, Blogger, LiveJournal), then this software is not suitable for you. Instead if you are looking to start your own blog and want to manage everything right from the desktop, this will be a great tool for you.
In Thingamablog, you can find the blog configuration option, post composing sections and many useful tools to help you manage your blog. It is just like a WordPress condensed to desktop version (minus the plugins).
In addition, Thingamablog is coded with Java, thus making it cross-platform compatible. As long as your system has got Java runtime, you will be able to run Thingamablog
QTM
QTM is designed for the KDE desktop, but it works in Gnome as well. Among various native Linux blog editors (ScribeFire not included), I would say that QTM comes with the most complete features (though it is still far off from WLW) for most blog platforms.
You get a decent text editor, with options to specify categories, tags and pingbacks. There is also a quick post template where you can create a template set that you can use to publish quick posts.