USA Today – Two companies, Mozy and Carbonite, now offer unlimited storage for about $50 yearly, or about half the cost of a 500-gigabyte hard drive. Mozy has 350,000 subscribers while rival Carbonite says it has more than 100,000 subscribers.
To back up to online, most services ask you to download a small piece of software, which resides on your computer and acts as a virtual drive. The programs can be set up for automatic backups, or you can drag and drop individual files.
Delivery depends on your connection speed and how much data you are sending. Video files tend to be the largest type of data. Link