Simple Poll - The easiest way to create polls in Slack
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.
iPoll.app - Create instant polls and forms with in slack!
Udemy - Online Courses - Learn Anything, On Your Schedule
doopoll - Create live, instant, editable polls effortlessly
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!