Tools for Offering Online Classes

Something to look at for offering online classes -- especially at the homeschool level.

Started with ed2go, the company offering the Alice and XHTML courses.
Then...
Blackboard is what the schools use (but $9500 price tag and you do the work)

Then...
Drupal is, I think, the open source platform for online class options: http://en.wikipedia.org/wiki/Drupal

Moodle is a free open source program for offering online classes -- might be an interesting way to explore http://moodle.org/

MoodleRooms takes that one step further and for a monthly/class fee, they will handle the student sign up, etc. part of the class (plus moodle tutorials): http://community.moodlerooms.com/

Sloodle takes Moodle to the 3-D level -- hmmmm.... not for me!
http://www.sloodle.org/moodle/

A more expensive version than MoodleRooms but that is infinitely more accessible than Blackbord and less expensive than ed2go is DigitalChalk: http://digitalchalk.com/

All of which includes cloud computing (which I don't really get except the cloud is a metaphor for the Internet!):
http://en.wikipedia.org/wiki/Cloud_computing