WebJunction

I just checked out Nuvvo, http://www.nuvvo.com/
From the website:
TEACH ONLINE FOR FREE
Nuvvo is your way to teach on the web. Everyone knows a little bit about something, and this free, AJAX-enhanced eLearning web service is designed to bring out the teacher in all of us. Sign up and build a course in minutes; advertise your course on our eLearning Market to get the word out. Get teaching with Nuvvo, Web 2.0's answer to eLearning.

I took the quick 9 minute tour, a few notes:

Pros
Can create self paced courses- can integrate multimedia
Looks easy and straightforward, uses simple language
Will integrate blogs and discussions
Can charge students for courses, they take care of transactions and take 8% of the cut
Context sensitive help (really highlight their help features)
FREE to instructors
Highlighting community aspect of this
Includes ability to create simple assessments

Cons
Have to “invite” students (send an email, logins and passwords generated)
At this point no synchronous tools
Storage limited to 100mb (but can probably upgrade for a fee)

Seems like a GREAT tool for a small library that needs to create simple training modules.