I am posting this article by using ScribeFire Blog Editor
This Firefox addon let you post from your browser.
I added the above image by using image insert feature in this addon.
You can preview your article in this addon preview without changing the actual blog.
You can add labels and save it as a draft to your blogging platform.
ScribeFire is a full-featured blog editor that integrates with your browser and lets you easily post to your blog. You can drag and drop formatted text from pages you are browsing, take notes, upload images, and post to multiple blogs.