Now you've put so much time and effort into creating great content, you need to make sure it's protected. To ensure your content is safe, you must back up your blog on a regular basis.
The frequency of your backups will depend on how often you post to your blog, but as a general rule of thumb it's a good idea to back up at least once a week. You never know when something might go wrong and when it does, it's usually beyond your control.
When considering your backup routine, remember there are two groups of data that make up your blog: the site files and the database. Both of these need to be backed up, but it may be that the site files don't need to be backed up as frequently as the database. The site files are basically everything from your original WordPress core installation. Much of this you won't have changed,...