Mozy is as I said before the online backup solution I use but I've tried some more and wanted to let you know that ProtectMyPhotos is a great and non intrusive program but limited to mostly images or photos and some other file types like most common document types like Word and Excel. If you want other file types you have to wait and see if it's added in the future.
A commenter to a previous post said:
There is an excellent website for online backup and storage information, news and articles. It is: http://www.BackupReview.info
This website lists more than 400 online backup companies and ranks the top 25 on a monthly basis.
I see that Mozy is going up the ladder. Now on place 20.