Bubbl.us is a web application for creating mind-maps either on your own or collaborating with others. https://bubbl.us/ http://quizlet.com/ Quizlet allows you to create and share flashcards. Great to help your students revise material or for you to create resources. Quizlet is a free flash cards and study games website. It was created by high school sophomore Andrew Sutherland in 2005 and now contains over 20 million flashcards. All of the material is user-generated.