X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Padlet - Visual boards for organizing anything.
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.
Simple Poll - The easiest way to create polls in Slack
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
Snapchat - Real-time picture chatting