I wonder why they aren't all under the same domain? All the classes I've seen so far seem to be the same underlying app.
Maybe they're just doing it that way so people can farm HN karma.
I think its because they just want to decentralize the system.
(I lack the humor though... The best thing I can come up with is probably something like dadaism-class.org.)
1) This is a decentralized system. Stanford just circulated a memo (or in a lunch discussion, lets not obsess over how this happened) that prof Ng and Prof Jeniffer have done this amazing class where the world participated and everyone is happy. Now everyone is encouraged to use the site source (they haven't even changed the contact page or layout) and start the class of their own. Nobody knows for sure who is planning to put it up and it is highly decentralized.
2) Stanford is rolling them out slowly so every on of them gets their share of twitter/hn/reddit/fb time. Nobody steals the limelight.
We can know which new courses are going to happen if someone makes a whois program which does the search for -class.org where is any 6-7 letter word.