Yup. I use Yola/Synthesite. It was tough to work with at first, but I got the hang of it. I still don't know all the capabilities but it works for what I want it to do. When I took a break from diostories, I had to relearn how to use that site!
I do know this. Save your files very specificially cuz when you upload them to the site, it's easy to get them confused. Basically, the latest chapter of DoomsDay Machine looks like this on my computer. ddm_ch04_lastenemy_(2). The end number is the specific frame. You don't want to jumble the story up with JUST 02, 03, 04 cuz what if you do another story and use the same numbering? You won't be able to keep track easily. Lehsreh found that out the hard way and the Yola file manager's a mess for us.
Anyway, if you questions, you can ask me or Lehsreh. NOt sure who else uses it.
http://darksonneilon.synthasite.com/
That's how my site there looks. Just a reference.