Blackboard vs. Moodle: North Carolina Community Colleges Assessment
Highlights from a study comparing Blackboard and Moodle with several good points. Basically, neither system is much better than the other, but switching to Moodle saves money and ultimately makes students and faculty happy.
A Guide to K-12 Open Source LMS Options -- THE Journal
Overview of open source LMS options with examples of districts currently using them. This article covers Moodle, Sakai, Canvas, OLAT, ATutor, and Google CloudCourse. I thought CloudCourse was owned by Google, but it appears the code has an Apache license. CloudCourse seems to be mostly scheduling rather than a full-fledged LMS.
The Top 20 Most Popular LMS Software Solutions powered by Capterra
Capterra's analysis of top LMSs by customers, users, and social media popularity. Many people only review 2-3 LMSs before making a decision. This list gives people some additional choices to review while still being a manageable list. The explanation of their research is linked below the infographic.
This is actually 18+ free and/or open source LMSs. Some are truly open source, some are freemium or other business models. If you want a list that goes well beyond Moodle and Canvas, this is a good place to start.