Nimbus Clipper - Capture, annotate, and share anything you see online
Padlet - Visual boards for organizing anything.
Save To Notion - Free Chrome extension to quickly save webpages to Notion
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.
Startup Quote - Awesome founders provide wisdom about making things
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.