A fairly common (some would say 'trendy') assignment set for students (individually or as a group) is to create a web site. Most (if not all - I'm no expert) LMS can't do this at all or not very well. BlackBoard wiki? I hope not!
It has to be free, support group working and present the lowest possible technical barrier to students. After all, it's the content not the web design that should be assessed. A couple of years ago I would have recommended Google Sites but I can't today. If development of Google Drive/Docs has been slow, Sites has been glacial. And it's vanished off the main Google menu, which is never a good sign.
I can't claim to have found Weebly - a student asked for some help on a site she was creating and happened to be using it. At first sight it looks simplistic and limited (not necessarily a bad thing) but a poking around reveals a level of customisation possible that will satisfy the keenest Jquery or CSS hacker.
Add group editing and you've got a very accessible web development environment that is everything Google SItes should have been. Created sites come with a clean and simple mobile version with no extra work (though anything you embed may not always work - not a Weebly failing though).
The only drawback I'd found was that there are Flash components used on the Weebly web site that made it difficult to use in full on IOS. But I did manage to do some basic editing on my iPad regardless. Then I discovered there's an app anyway. I haven't tested it yet - I'll cover that in another post.
I was impressed enough to use it as the basis for my new bizzypeople.com site. Just a few hours over the weekend and I have the basis for a great site that doesn't involve any code hacking.
I'll certainly be fighting Weebly's corner at the Univeristy of Northampton. If I have to support web creating software, I want it to be Weebly, not Wordpress!