Darius Sciuka wrote:
Crashplan, for instance, has the features you need. You can specify files/folders to backup, and they are regularly synchronized with the cloud storage. You can group your backups in sets and specify different synchronization interval for each set. It is designed specifically as a backup solution so it is not good for sharing your images/files or viewing them online.
Thank you Darius, Crashplan looks like something worth considering in my case. For file sharing etc., there are indeed plenty of alternatives including the ones Mario listed.