Goodreads - See what your friends are reading.
Udemy - Online Courses - Learn Anything, On Your Schedule
LibraryThing - A home for your books.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
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.