Web-based backups
It's a simple concept. If you don't have much data to backup, you can schedule daily off-site backups where your data is sent to a remote server, either through the Internet or perhaps a private network. Because it takes a long time to move data through regular dial-up connections, packages often include software that can determine what data has actually changed on your computer, so only changed data is backed up daily.
Pros: Easy off-site backup, regularly scheduled backups, great if backing up small amounts of data.
Cons: Can be very slow as daily backup requirements increase; the reliability of the off-site provider is also critical to the value of this solution.
Cost: Varies. For example, starts at US$3 per month for up to 50 MB, while starts at US$7.95 per month.