"Some of the following resources (particularly the articles) offer devastating criticism about PowerPoint. Some of the authors believe that PowerPoint is the worst thing ever created and that it's just a high-tech projection tool used as a quick replacement for more thoughtful presentations. Other authors advocate the usage of PowerPoint, focusing on its rich visual nature and its role as an educational and informational tool. Whether you love, hate, or don't care about PowerPoint, this computer software is here to stay. The following resources explore the dos and don'ts of using PowerPoint."
What is the difference between "a hearty welcome" and "a cordial reception"? In a brief, action-packed history of the English language, Kate Gardoqui explains why these semantically equal phrases evoke such different images.
Bulent's comment about TEDtalks for education prompted me to share this link, about the evolution of English. It shows you how TEDed has been developed for specific educational purposes. Notice that there is a introductory video, a short quiz, and then a 'think deeper' page with more resources to follow.