Blogilo is a Free/Open Source Blogging client, focused on simplicity and usability.
It is a KDE program, which allows you to create a blog posting offline and submit it to your blog. Using a normal client instead of a browser can be more convenient.
I’m using wordpress with a handfull of a blogs and discovered a problem with blogilo: It only allows me to submit postings to my primary wordpress blog. For everyone who has the same problem, there is an easy solution
BTW, To get out of this problem, You can set http://wordpress.com as your blog url and try! It will fetch all of your blogs, and you can select which one you want!