BookWidgets - BookWidgets is an excellent application that let you create engaging exercises in minutes and easily share a varied variety of beautiful and fun activities with your classroom and others.
Tribe of Mentors - Short life advice from the best in the world, by Tim Ferriss
Padlet - Visual boards for organizing anything.
MentorCruise - Personalized mentorship experiences
Socrative - Socrative helps teachers engage the class with educational activities to measure and visualize...
Frontend Mentor - Supercharge your front-end skills by building in a real-life workflow. Solve real-world HTML, CSS and JavaScript challenges whilst working to professional quality designs.