Ya están disponibles algunas extensiones de google. Un ejemplo de uso: Bloggear
Google Chrome Extensions: Blog This! (by Google): "our browser toolbar, blogging will be a snap (or rather, a click). Click the button to open Blogger in a new application window. The new post is pre-populated with a link to the web page you're on, as well as any text you've highlighted on that page. Edit the post to your liki"