LucidDreamBot - The easiest way to achieve lucid dreaming
Padlet - Visual boards for organizing anything.
LuCI - LuCI is an OpenWrt Configuration Interface.
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.
Dreambook - Dream journal, interpreter and tracker
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.