Microsoft Education Labs “Flashcards,” is a tool that helps you create, share, and most importantly, study more efficiently. Flashcards offers a unique learning experience that you don’t get with traditional flashcards. Cards that you’ve never studied before are introduced at a rate that’s customized for you; it’ll introduce new cards more often if you show that you know the previously introduced material, and it’ll introduce new cards less often if you still need to learn some of previously introduced material. The order in which cards’re reviewed is also customized for you based on how well you know the cards. Over time, cards that’re easy for you’ll be displayed relatively less often, while cards that’re difficult for you’ll be displayed relatively more often. Finally, your progress’s all saved in cloud, so you can study from home as well as from school and the system will use all of your previous progress to determine the best order for you to study. If you’re interested in the science and technical details behind Microsoft Flashcards, you might be interested in short whitepaper (PDF,XPS) that describes the techniques used as a part of this project.