You can do the same thing with Greymatter. I'm playing with Version 1.21b at the moment, which allows you to install Greymatter bookmarklets to your browser toolbar and right-click menu. I haven't read the version history, so I'm not sure if this is new to v1.21b, but you might want to check it out.
Originally posted by Spoker
I know its better, but there is actually only one reason why i use blogger and nog greysoft. With blogger you can just rightclick, select "blog this" and hit enter and there you have it. That's the easiest i've see.