I wanted something that created output documents like backbone.js's awesome annotated source code [1], but couldn't find it, so I made it.
Hopefully it's useful to you for annotating code, translations, or any arbitrary text. I think it's great for educational material.
site: http://www.getannotations.com/
source: https://github.com/chromano/annotate
Pull requests welcome.
[1] http://backbonejs.org/docs/backbone.html