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Moodle (acronym for Modular Object-Oriented Dynamic Learning Environment) is a free software e-learning platform, also known as a Learning Management System, or Virtual Learning Environment (VLE).¹

Moodle is a learning platform designed to provide educators, administrators and learners with a single robust, secure and integrated system to create personalised learning environments.²

1. Source: Wikipedia (http://en.wikipedia.org/wiki/Moodle)

2. Source: Moodle.org (http://docs.moodle.org/26/en/About_Moodle)