LearnOSM (LearnOSM.org) is an online manual created by the Humanitarian OpenStreetMap Team. It was originally aimed at HOT's work in Indonesia. The content is being expanded to help provide information in for projects in other areas.
Discussions regarding translation and adding additional content occur on the LearnOSM-coord mailing list.LearnOSM content is on github as reStructuredText Files. Github also includes an issue tracker with further discussion