Backup Your Computer, Backup Your Life
 

Online backup services are a good way to have an offsite backup, but you must have a local backup too especially with large files because it might take several hours to recover your data in case of a hard drive crash. I use MYPCBackup, the service is reliable and not expensive.

Local backups can not be carried out while you are travelling with your laptop. For that cloud backups are more useful.

I agree cloud backups like Dropbox are more useful. You may open it anytime and wherever you are.

useful information thanks for sharing