SMMRY - Summarize articles, text, websites, essays and documents for free with SMMRY.
Padlet - Visual boards for organizing anything.
Free Summarizer - Summarize *any* text online in just a few secs. *MAGIC*
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.
TLDR This - Automatically summarize any article or webpage in a click.
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.