This document discusses and compares various e-learning management systems (LMS) for use in higher education. It begins with an introduction to LMS and why they are used. Popular open-source LMS like Moodle, ATutor and ILIAS are compared based on their features. The roles of LMS in e-learning and libraries are described. Barriers to adopting LMS are also outlined. The document concludes that while LMS have common features, Moodle is the most adaptable, and that there is still work to be done to fully implement e-learning.