Adobe Captivate Prime LMS - Adobe Captivate Prime LMS is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
Cronofy - Unified Calendar API for developers
Udemy - Online Courses - Learn Anything, On Your Schedule
Calendarix - Calendarix is a powerful and easy to use web-based calendar that runs on PHP and MySQL.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Campaign Calendar - Campaign Calendar by Bracket Labs builds a marketing calendar from your Salesforce Campaigns.