Graphic Organizer App

Here is a review of an app that is recommended for use with students in grades 3 - 12. Looks like it might be a good one!
http://www.iear.org/iear/2012/1/30/great-graphic-organizer-app-for-grades-3-12.html

Apps, Apps, Everywhere

In case you haven't come across your own list of available apps, check out some of the ones below.
If you come across any good compilations, please share them in the comment section.
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Once you have started using some apps yourself, make sure you are adding them to our shared Google Doc so others know what's worth trying and what's not.