SugarSync
SugarSync (formerly known as Hummingbird) is a service from Sharpcast that allows you to sync and access your files and media from anywhere” on different computers, on the web, even on your mobile phone. SugarSync securely backs up all your computers online and synchronizes them automatically so you always have access to your files. Best of all, SugarSync takes care of everything automatically in the background, so you never have to make backups or email files to yourself. Say goodbye to CD burning and emailing files to yourself; say hello to SugarSync.
I have been using SugarSync for a few weeks now. You install a program to your computer and it will automatically backup everything in your user folder, or folders of your choosing. I found it useful to backup a few important folders, but I did find the software to be a little restrictive. First off, you are limited to 1GB (but you get 10GB more for the beta) which is hardly enough space to backup much. You also cannot pick which files not to backup, which means it is all or nothing.
I did have a problem with accidentally deleting a folder that was backing up. What I thought it would do is delete the folder from the backup, but what it really did was delete the folder from my computer. Then after I managed to restore the files, it went and deleted them again. I don’t think it is right to let a piece of backup software do that. That is probably the killing point in this software for me.
If you want to try out this software, the first 7 people to comment below will get an invitation to this service.