That's sort of what we're aiming to do at http://www.dojolearning.com/ - longer term anyway. We're starting off by hitting the business market first, which is more open to change and not as tied to the existing learning systems, but we do plan to branch out in lots of ways to make a better online learning experience for everyone.

Anyway, if you're passionate about online learning, I'd love to chat about it with you if you're interested...