BleepingComputer.com: Online Backup service

Hey guys,

After my PC buggered up and I lost some files, I'm looking at possibly using an online backup service to back up my photos and other personal files.

I want to use an online service as I think it will be easier, and wont require me to buy any extra hardware.

So, what ones do you guys recomend? I want a service where I can tell it to back up specific folders, and possibly do this constantly in the background, so my backups are never out of date.

Any advice always appreciated!

Thanks, Dean