I've been trying out various online learning systems thinking about teaching web design as part of Digital Media Computing next year. This year we have been teaching computer games development by next year we will have a separate games development class so there will be a gap in the DMC course.
Last night I discovered WiBits.net. This looks fun and interesting but again no badges or accreditation. It might be a nice site to send kids off to for some independent learning.
I also looked at P2PU's School of Webcraft. The first task is to write a blog post introducing yourself (Hello, my name's Kate. I'm a Computing teacher in Edinburgh, Scotland :-)
P2PU has the added benefit of being part of the Mozilla Open Badge Framework. This is something we're VERY interested in here at Castlebrae. We're planning on badgifying our whole DMC curriculum to make it easier for us and the students to reailse what assignments they have submitted and completed and what work they have still to do.
If you fancy trying out the Open Badges system, try and get a Badges 101 badge and a Hackasaurus badge. If you teach DMC or NPAs and fancy joining us on our badgifying quest, please get in touch! :D