I work as a UI designer/developer for AppRiver, and every week someone presents what we call a Ten Minute Topic (TMT) to the entire development department. A few weeks ago I presented a very non-technical presentation about user psychology, mostly dealing with how we as website developers & designers can make websites work better for the people who use it. We can do this by better understanding how the human mind works, and knowing what the person using the website is expecting to happen.
We record these presentations internally so we can watch them later in case anyone needs a refresher or if anyone missed a week. A fellow coworker, Shane Drye, has written a blog post summarizing the main points of my presentation, and you can even watch the video of my presentation!