Gartner: E-learning Market Pushing Toward Open Source
Interview on the increase of open source LMSs Moodle and Sakai in higher education
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.