Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel, etc). Using Wink you can capture screenshots, add explanations boxes, buttons, titles, etc and generate a highly effective tutorial for your users.
This is a good example of how you can create tutorials in Wink, by capturing screenshots, mouse movements, and specifying your own explanations with them. And all this in a standard Windows-based UI with drag-and-drop editing makes it very easy to create high-quality tutorials/documentation.
Similar applications sell for hundreds of dollars, while Wink is free with unrivaled features. So spread the word about Wink to your friends, colleagues, and followers.