If you want something that can automatically sync directories between different computers (you choose the directories and the computers that share them) and does cloud backup of directories of your choice, and you pay per account (based on the how much total storage you want), not per computer, take a look at sugarsync.

I'm still (somewhat stubbornly I suppose) using sugarsync 1.x + a free dropbox account.

They have tech support, it's not that great, I've solved more problems myself, though some were self-inflicted (upgraded to SSD, leaving Users directories behind on the hard drive confused sugarsync. took a while to figure out what to do to fix it, tech support blamed it on Mavericks, which had nothing to do with it, suggested I upgrade to 2.x, which didn't solve anything. I had to treat it like a new computer, and then clean up the cloud mess that was left behind.)

Despite mentioning OS/X Mavericks, it is X-platform and I use it on both Win and Mac, syncing some directories between them.

The 1.x interface is very powerful, you can add sync folders, manage exclusions (by sub-folders), and do all that pictorially. 2.x probably lets you do the same thing (and maybe more) but I hated losing the 1.x pictorial interface.

ETA, here's a pic of what the 1.x "manage sync folders" interface looks like. Despite the name you can add/manage folders that aren't synced across computers here also.



Can you read that? The top row is the list of computers, the white section shows pictorially directories being synced ("Magic Briefcase" is there default folder that's synced everywhere, like Dropbox, but you can change or eliminate that if you want to.) The next section shows the regular (non-synced) directories being backed up for that computer.

If you click on a folder, you get to "manage excluded subfolders" and if you select that, you get to pictorially uncheck any subfolders you want to exclude from that entry, and you can expand any subfolders below them as well, so you get complete control over what's backed up, what's synced and where it's synced, etc.

Instructions for finding/downloading the 1.x versions for pc/mac are in this support post - https://sugarsync.custhelp.com/app/a...etail/a_id/623

-David