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Online whiteboard, perfect for organizing thoughts and findings. If you have an educational email, you can get a Free Edu account with extended features.
StudyStack helps anyone memorize information for a test. You can use existing flashcard sets or create your own. The site automatically creates a bunch of different activities that you can use to study with which helps you from getting too bored. It also seems that the more different ways you study the more the information sticks so that you can recall it when you need to on a test.
The free, easy and visual way to organize anything with anyone.
It's just perfect for managing your life.