IF YOU'RE A Firefox user and a blogger, you have to give this add-on a try: Performancing. You can post from the window or tab you're on; format the post, upload pictures, add Technorati tags, categories, send trackbacks. All in a snap, and supports all major blogging services and software. Particularly handy if you have more than one blog, since you can add up several accounts and switch from one to another by just one click.