There is a small utility in Ubuntu called Gnome Blog which allows you to blog directly from your desktop. If you are running firefox on Ubuntu, click on this link to install the package or enter the following command in your terminal

sudo apt-get install gnome-blog

Once installed, right click on an empty area on your panel and add “Blog Entry Poster”. Once you’ve added this click on it to start the app. First time you run, you’ll be prompted to enter details about your blog.

First select your blog type – Blogger, Wordress, LiveJournal and MovableType are all supported here and a few more. For Wordpress blogs, enter your blog’s URL and username and password and you’re all set to go.

Once you’ve set it up properly, you can start your blog post by just clicking on the Blog button on your panel.