Blackboard Inc patents educational groupware

Melchior Sternfels writes “Via Slashdot comes word that Blackboard Inc
has patented the Learning Management System (LMS)
as an “Internet-based education support system and methods”, and is
now suing a rival firm. You can read more about this development in
The
Chronicle of Higher Ed. You can also read the patent itself.
At least two efforts are being made to collect examples of prior art
with a view to a possible challenge of the patent: at Wikipedia
and at Moodle.
In the present revision, it appears that most of the content of the
Wikipedia article has been deleted, but you can find it in a prior version of the article.”