15GB of Dropbox, due to referrals.
Mostly by sticking my referral link in my sig.
What I like about Dropbox is that it works very well everywhere... even linux, which is notably unsupported.
OneDrive doesn't do linux. Okay, granted there is a third-party experimental solution.
Box.com doesn't do linux. Well, at least there is WebDav.
After years of promises, Google is still "working on it".
The OSX installer includes now includes screenshots for linux setup (as well as the Windows screenshots), so... hope? Anyway, another third-party solution, grive/grive-tools, supposedly works all right. Except when Google has lousy APIs so renamed folders get emptied client-side and deleted in the cloud?.
Unofficial solutions do not inspire, honestly.
copy.com supports linux officially.
Sadly, I am left with feelings of Slow.
I do
fuse-mount my Copy folder when I need to upload media, say, this year's Purim Shtick videos.
Dropbox works with perfection, but you need referrals to get significant space. Then again, just how much space do you need? In my case, "5.6 GB of 14.88 GB used" -- and I have a bunch of junk.