Lorelle puts up a friendly reminder that you should be looking at backing up your blog. Far too many of us end up with nothing thanks to our own forgetfulness or inexperience when it comes to backing up our blogs.
In order to backup your WordPress blog, you must do two types of backups. The first one is to backup your WordPress Theme and all files on your blog’s server, such as your WordPress installation files, WordPress Plugins, and any static files and graphic files you use to create your site.
The second part of your backup is to backup the database which holds all the data and content for your blog.
Make sure you do research on this before you lose your blog and all its posts, comments and theme customizations.