The thing i like about Youtube is the massive amount of content and information you can find just by typing the thing that you want and click "search". Tons of videos at your fingertips and you are practically spoilt for choice. This video which i personally liked is about how you make killer presentations to the general public. The tips which he gave are so true and we sometimes just did not notice that they could make such an impact to your presentation. Please spare around 8 mins of time and view this video, i guarantee you will not regret it!