Xerte is an e-learning creation platform that puts the student with a disability first by having readily available options to create content that is accessible. It is the creation platform in the MA in Open & Distance Education module H810: Accessible E-learning. It's an easy to use blog/PowerPoint webpage building platform with a suite of adjustments built into the frame (see above) that allows for personalization of the experience to suit user needs.
Xerte online tool kits for untechnical people
How to start a Xerte object
Guides to using Xerte and installing it.
As for an xMOOC I think 'MOOC' will do, indeed already there is a movement to call them 'OOCs' as the 'massive' thing is a misnomer given the vast fall off in participation in the things.