This document discusses the evolution of online video from early platforms like YouTube to more recent platforms focused on desktop applications like Joost. It notes that desktop applications allow for better caching of content, availability outside the browser, and improved user experience over browser-based platforms. While these platforms aim to distribute content more efficiently and reduce piracy by quick availability, monetization remains a challenge as bandwidth costs are high and revenues are still low. The future may see these platforms extending their reach beyond PCs to TVs and mobile devices.