The document discusses Jing, a free application that allows users to take screen captures and record short videos of their computer screen. It can be used to explain ideas, give feedback, and collaborate on projects. Jing makes sharing information easier by allowing users to instantly share screenshots and recordings through the internet, instant messages, email, or online course shells. Some examples of how Jing can be used include recording narrated historical journeys or science experiments, recording math problem solving, digital storytelling, and creating tutorials.