Web 2.0: The problem with online backup

So I was listening to a podcast recently, more on that later, and I decided to try and get more serious about my back solutions. Awhile back I invested in a wireless base station with a USB port that I could plug a hard drive into so that I could perform wireless backups here at home. I was using a program called Chronosync to perform the backups daily, but unfortunately it was an imperfect solution.