Has anyone tried this?Is anyone interested in this?
Yes, I've been looking into it in relation to this project. If you'd like to join our little informal research group feel free to contact me via PM and share your email address. :)
Are there other easy ways to make and publish online lessons without paying money?
A few but they seem kind of sketchyware and I haven't tried them.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.