Chronological Awareness Tools-tools that visually represent history and time (timelines)
Categorization Tools-tools that allow students to prioritize and diagram central ideas and thoughts
Prioritization Tools-tools that help students select, prioritize and categorize concepts
Source Work Skills-tools that allow students to examine and analyze words and images
Essay Skills-tools to diagram key concepts and main points of an essay
One of my favorite tools in Classtools.net is the arcade game generator. You can very easily and quickly input questions, select the game you want to create (there are 4 different games) and produce your very own arcade game. This tool is great to asses student's prior knowledge or review. Some other cool tools on this site include flashcard generator, countdown timer, random name picker and many more.
This tutorial shows you how easy it is to create an arcade style game.