Record onscreen activity. Edit it into a polished video. Share with the world. Camtasia Studio makes you look like a pro.
Not too much to say about Camtasia. The official website uses video to explain what and how it all works. It records all, or part, of whatever is going off on your screen. Add titles or audio to the finished video and publish on websites, youtube, mobile devices etc. Does everything, just play with it to see the potential.