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.
Food 52 - Social network for foodies.
Padlet - Visual boards for organizing anything.
One Month Skill - Learn a new skill every month with daily emails
Socrative - Socrative helps teachers engage the class with educational activities to measure and visualize...
One Month iOS - Learn to build your first iPhone app in just one month