Calcr : Similar to Calcoolate, Calcr is a web-based calculator with mathematic expression and function support as well as history logging in a very minimalist design.
Create a Graph : Explains and illustrates the different types, and provides a step-by-step guide to creating examples for downloading and printing.
e-Tutor Graphing Calculator : Online tutoring, learning, and homeschooling resources
Quizlet : Quizlet is the largest flash cards and study games website with over 3 million free sets of flashcards covering every possible subject. It's the best place to play educational games, memorize vocabulary and study online.
Flashcard Exchange : This web site is an Internet application where you can create, study, print and download flashcards
Drawing Diagrams and Mind Mapping
Google Sketchup : Fun and easy to use. Picture anything in 3D and Share models with friends.
Queeky : Queeky is an online drawing community with unique drawing tools and creative users from all around the world.
Zoho Sheet : Create and share interactive spreadsheets on the web.
Bubbl.us Intuitive mind mapping tool. Make your own mind maps easily.
Zoho Show : The online tool for making powerful presentations. Zoho Show's pre-built themes, clipart and shapes coupled with features like drag-and-drop makes it an easy application to use.online, and export as HT