[ILUG] Linux/Open Source eLearning Solutions?

[Cormac McClean]

Hi,

I'm starting to look into eLearning solutions[0], including the following
	WebCT
	eCollege
	Blackboard

WebCT is top of the list because we already have a certain amount of exposure 
to it. It also runs on Linux (RH).

I'm wondering if anyone has knowledge or experience of eLearning solutions 
that are either Open Source or Linux-based, or preferably both. 

As I said, I'm just getting started and plan do spend a significant amount of
time researching and reviewing various options (google will be busy), but 
also wanted to tap into the ILUG foundry of expertise and see if anyone has 
experience in this particular area.

Thanks in advance,
Cormac.

[0] By which I mean the provision of course materials, assessments, and
teaching support (discussion groups, mailing lists) via the Web, either
on the Internet or the local intranet.