Sketch Repo - Collection of resources for anyone who uses Sketch
Udemy - Online Courses - Learn Anything, On Your Schedule
Charts by ls.graphics - The most comprehensive collection of charts for Sketch
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Gmail Add-on Design Kit - A simple Sketch library to speed up Gmail Add-on designs
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.