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.

start.me - A Modern-day bookmark manager. A place for your favorites. A news feed (RSS) reader. A browser startpage. A portal for your team.

Padlet - Visual boards for organizing anything.

Pocket - When you find something you want to view later, put it in Pocket.

Socrative - Socrative helps teachers engage the class with educational activities to measure and visualize...

Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.