I heard about a cool free online backup service today, and signed up right away to check it out.  It's called Mozy, and it seems like a great service. 

Just click here to sign up for an account, download the Mozy file manager, select which items you would like to keep backed up on a regular basis, and then set it loose.  You can have Mozy back up your files every day at a certain time, or once a week -- you pick the day and time.  You also have the power to choose which types of files to keep backed up -- video, music, spreadsheets and databases, documents, pictures, etc. 

You also select which sections of your hard drive you want Mozy to look for files on -- great control and power for a completely free solution.  You get 2 Gigs of space with the free account -- more than enough for the average computer user's critical files.  If you want to back up more, the prices for more space are extremely reasonable.  Give it a try!