Moodle
Moodle is a Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a Free web application that educators can use to create effective online learning sites.
OLAT - Your Open Source LMS
Welcome to OLAT (Online Learning And Training), the web-based open source Learning Management System (LMS) based on Java and completely free of charge.
ATutor 2.0
We are excited to announce the arrival of ATutor 2.0. This release is the first in the 2.0 series, which represents a new direction for ATutor, building on its LMS and LCMS roots to become a collection of tools for creating online classrooms. Try the ATutor Demo, or Download ATutor to install your own copy.
openelms
Marketed specifically as a business solution, and claims a diverse customer base that ranges from Merrill Lynch to Queens Park Rangers football club.