This document discusses the new features of Internet Explorer 9, including its support for modern web standards like HTML5, CSS3, SVG and ECMAScript 5. It highlights IE9's improved support for video, audio, canvas and graphics manipulation capabilities through HTML5. The document also demonstrates how to integrate IE9 with Windows features like pinned sites, start menu integration and jump lists. It provides resources for learning more about IE9's HTML5 support and tools for testing and developing HTML5 applications.