Looking for help selecting a color scheme? Here's an easy-to-use tool.
Data
Create a visualization of your own uploaded data set or a data set already on the site. Hosted by IBM.
Make your own flash cards or use some made by someone else.
Image Editing
Create animated gifs from stereograms. New York Public Library.
This is a collection of free online image editing tools. If you explore the Menu items across the top of the screen, you'll see the names of the various tools--Pixlr Editor, Pixlr Express, etc.
Some of the tools are also available as Apps for mobile devices liks phones and tablets.
Moodle
Diigo