SourceForge - The Complete Open-Source and Business Software Platform.
Udemy - Online Courses - Learn Anything, On Your Schedule
openDesktop.org - The website openDesktop.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
OSOR - OSOR is the Open Source Observatory, a project to provide a framework for developing and executing autonomous observations.
Adobe Learning Manager - Adobe Learning Manager (formerly Adobe Captivate Prime LMS) is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.