This document discusses the use and popularity of online video. It notes that Americans watched over 12.7 billion online videos in November 2008 alone. Studies have shown that video can improve memory retention and learning performance compared to text alone. The document provides tips for creating effective web videos, such as being original, keeping videos short, evoking emotions, creating a video series, and inciting wonder. However, it warns that "scamming" viewers is never an acceptable strategy.