Is anyone already doing this in Drupal?
What services, tool, modules, other resources are you using?
Might you be interested in a Drupal Learning Project?
I had an amazing trip to Cambodia in January of 2010 working with Teachers Across Borders (http://teachersacrossborders.org.au) and considering solutions for professional development for in-service teachers.
We hope to eventually find a way to build a Drupal installation profile to support blended learning and cataloging of learning materials, particularly focusing on lesson plans and classroom materials across multiple languages.
More recently I have been helping to organize the Drupal Open Learning Imitative (DOLI) (http://drupalopenlearning.org) and am thinking that this would make a great Drupal Learning Project for the DOLI's Drupal Kata / project based learning program--where we could build a team of mentors and apprentices to accomplish the task.
I have spoken with a couple of organizations that may be interested in such an effort--the response has been positive.
This idea is in its infancy, although it could move rapidly with the writing of a preliminary proposal and development of grant requests, especially if we can find other organizations with a similar interest and ability to commit time and/or resources to the project.