Let’s face it, if you loose your entire blog, you will be kicking yourself to Kansas, because you didn’t take the time to backup your blog database. So take action now and go directly to http://www.ilfilosofo.com/blog/wp-db-backup and download and install the latest version of the WordPress Database Backup Plugin, currently version 2.1.2. Also, watch this awesome video: Essential WordPress Hacks – Database Backup
Don’t let your blog go up in smoke, back it up on a regular basis.