CreativeMinds WordPress Quiz Manager Plugin - Enhance audience interaction using CreativeMinds' WordPress Quiz Manager Plugin. Easily create engaging quizzes for your WordPress website.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Quiz Maker - Quiz Maker offers comprehensive set of tools to create and publish quizzes.
Edmodo - Where Learning Happens
Lifter - Build engaging online courses with Wordpress
Open edX - Open edX is implemented mostly in Python (with some Ruby and NodeJS as well) and the code is being...