Universal Design for e-Learning
Check out this Universal Design for eLearning: Making Learning Accessible to ALL Learners article with "webliography" by Pananea Rue: http://synergy.elearn2lead.com (about halfway down the page). The links include some courseware comparisons and links to things you might not have look at yet. Take a gander--eLearning is a significant part of our present and future and we need to be ready for it!