This program uses a sun as an interface. This sun appears at the top of your desktop. When you pass your mouse over it, three rays will appear, offering three different options: capture the screen, review the capture history or access the configuration. If you select the first option, you will be able to capture those parts of the screen that you want, and decide if you want a still image or a video. The still image capturing will allow some editing, like inputting text, arrows or highlighting a specific area. In what regards to the video recording, it will also allow you to add audio.
Once your captures are complete, you will be able to store them on your computer or share them on Screencast.com, a web on which you will be able to register for free. This website will offer you the possibility to share the images in different ways.